GoodPlayer FAQ
for iPhone & iPad

GoodPlayer is free to download. Each device gets 30 minutes of free playback per day in the GoodPlayer player. Local and network media share this allowance. Only actual playback counts; pausing and buffering do not. You can view the remaining time for the day, and unused time does not carry over.

Media playing within web pages in the built-in browser is free without a time limit and does not use this allowance. When the allowance runs out, playback in the GoodPlayer player pauses, while downloads and file management remain available. Wait for the next day’s allowance, or choose monthly or lifetime access for unlimited playback.

Active trials, subscriptions and lifetime access do not use the daily free allowance.

Both remove the time limit from existing playback features. Monthly access lasts while the subscription is active and renews automatically unless renewal is canceled. Lifetime access is a one-time purchase.

View available plans and the price before purchase in Settings → Playback Access. If you buy lifetime access while subscribed, cancel the monthly subscription’s renewal; buying lifetime access does not cancel it automatically.

Users eligible for Apple’s introductory offer can start a 7-day free trial of monthly access. Check the purchase page for your eligibility and the monthly price. After the trial, the subscription renews automatically at that price unless renewal is canceled through Manage Subscription.

An active trial does not use your daily free allowance. GoodPlayer 12.15 improves recognition of trial offers and refreshes eligibility information after purchases and trial expiration.

Open Settings → Playback Access → Manage Subscription to cancel renewal. A 7-day trial converts to the displayed monthly price and a monthly subscription continues renewing automatically unless renewal is canceled.

Buying lifetime access does not automatically cancel an existing monthly subscription. After buying lifetime access, use Manage Subscription to cancel the monthly subscription’s renewal.

Open Premium on the Media Library or File Browser home screen, or open Playback Access at the top of Settings. Lifetime users see their Lifetime Access status.

Purchase options appear at the top of Playback Access, alongside access information, Restore Purchases and Manage Subscription. You can view plans before playing media or using up the free allowance.

In Settings → Interface Style, choose Media Library or File Browser. New installations start in Media Library; existing users keep their interface choice.

The library home shows Continue Playing, Recently Added and Favorites. Browse videos, songs, albums, artists, playlists and channels; search, sort, or switch between list and grid views. Videos can also be manually organized as Movies or TV Shows.

Tap a local or network media card to play, or touch and hold for details and more actions. Videos use filenames as titles by default; a setting lets you use embedded titles instead. Artwork, video previews and media details appear when available.

Automatically Include Local Media is enabled by default. While GoodPlayer is in the foreground, it checks local folders and subfolders for existing media, downloads, uploads and file sharing imports. Identified media appears in batches without waiting for the whole folder.

You can turn automatic inclusion off in Media Library Settings. Existing folder exclusions and scan choices are preserved. Ordinary non-media files, hidden files and macOS resource forks are filtered out.

If a new file or an older download is missing, keep the app in the foreground and check the inclusion setting, excluded folders and scan scope. Version 12.14 fixes cases where those files did not appear automatically.

Choose folders from authorized SMB, WebDAV, FTP, SFTP, NFS, AFP, UPnP/DLNA, Google Drive, Box, Dropbox or OneDrive sources, and choose whether to include subfolders.

Media appears as it is identified. Version 12.14 improves network MOV, MKV and other media detection, including valid MKV files previously missing because detection could not finish.

Adding a folder does not grant new access permissions. For Google Drive, use Add Files to authorize the files you need; selecting a folder does not authorize all its contents. See Google Drive authorization help.

Close the full audio playback screen to keep listening with the mini player while browsing your library or files. The full screen shows track, artist and album information, available artwork and embedded lyrics, plus system volume controls.

The complete playback queue supports sequential playback, shuffle, repeat one and repeat all. Repeated entries in a playlist remain separate.

M3U, M3U8, PLS and HLS handling has improved so HLS quality variants and media segments are not shown as separate programs.

Version 12.14 strengthens access checks for protected media in the library, search and playback queues. Revoking access stops affected playback and clears its system playback information. If a protected track is selected in the background, return to GoodPlayer to unlock it.

Resume history better follows moved or renamed files, and clearing playback history prevents old records from reappearing.

You can hide or restore library items, clear image caches and rebuild the media index while keeping original files. Rebuilding also preserves favorites, playlists and playback history. Hiding a library item does not delete the original file; see permanent deletion and freeing storage if that is your goal.

Yes. GoodPlayer 12.13 includes the fix for missing characters shown as boxes in multilingual ASS subtitles. Some characters could previously turn into boxes as several languages appeared in sequence. Update GoodPlayer and play the original subtitle again; this issue does not require replacing its text line by line.

Tested subtitle formats: ASS (Arial style, without attached fonts) and external UTF-8 SRT. Each format was checked with 32 language or writing-system variants, with no missing-character boxes observed.

Samples in both formats displayed the following languages and writing variants successfully:

• Simplified Chinese, Traditional Chinese, Japanese, Korean
• French, German, Vietnamese, Turkish
• Russian, Ukrainian, Greek, Georgian
• Arabic, Persian, Urdu, Hebrew
• Hindi, Bengali, Gujarati, Punjabi (Gurmukhi script)
• Tamil, Telugu, Kannada, Malayalam
• Thai, Lao, Khmer, Burmese
• Sinhala, Tibetan, Amharic, Armenian

Device playback was checked on October 19, 2026 using an iPhone 12 Pro Max (iOS 27.0.1) and GoodPlayer 12.10. That fix is included in 12.13. Font fallback tests also passed on the iOS 18.0 simulator. These results cover the 32 samples; rare characters, unusual font attachments and every complex text-layout rule have not all been tested.

If a problem remains after updating, distinguish garbled text from missing-character boxes. If the preview is already unreadable, check the subtitle encoding. If the preview is readable but playback has missing characters, try the default subtitle font and note the format, language and affected text. See the subtitle encoding and display guide.

Version 12.15 is free to download, with 30 minutes of daily player playback per device for new users and optional monthly or lifetime access. Existing paid users and users who redeemed a promo code for the original paid app keep lifetime access with no new payment. Access is normally recognized automatically. If access is missing after updating, follow the restore purchases steps.

GoodPlayer requires iOS 18 / iPadOS 18 or later, with improved support for iOS 27 / iPadOS 27. Existing local files, folders, server settings and local passwords continue to be used, with compatibility for older preferences and playback positions. Shared and private folders remain accessible.

Some cloud services and websites require sign-in again. If an existing local password does not unlock your files after upgrading, keep the app and its data and use Password Recovery Help. Resetting ordinary settings does not clear local passwords.

In 12.14, new installations start in Media Library and existing users keep their interface choice. Switch in Settings → Interface Style. Automatically Include Local Media is enabled by default, checks files only while the app is in the foreground, and can be disabled in Media Library Settings. See Media Library help and automatic discovery.

Playback support has improved for AC-3, E-AC-3, DTS and DivX. The current player does not support MLP, TrueHD (including Atmos carried in TrueHD) or AC-4. Choose another supported audio track, or use a copy converted to AAC, AC-3 or another supported format.

Older release notes about removed audio support describe those earlier versions. Hardware decoding is now enabled by default; a previous choice to turn it off is preserved.

Google Drive now accesses only files you select through Add Files. Authorization is required again after upgrading. Selecting a folder does not grant access to all its contents.

If an existing playlist reports missing access, select the original files again using the same account. Google Drive, Dropbox, OneDrive and Box sign-in and access have also been updated.

Step-by-step guide: Authorize Google Drive files in GoodPlayer.

SMB connections now use SMB 2 / SMB 3. Servers that only offer SMB 1 need a newer protocol enabled, or another connection method supported by the device, such as FTP or WebDAV.

Sign-in, folder browsing, downloads, seeking and error messages have been improved. FTP, SFTP, WebDAV, NFS, AFP and UPnP / DLNA access have also received fixes.

Step-by-step guide: Connect GoodPlayer to an SMB server or NAS.

System-managed background downloads are available for independent file links that require no sign-in and can be requested again. Pause and Resume are available when supported by the server and system. Downloads tied to a website session stop when the app enters the background. Force quitting the app also cancels background downloads.

You can choose a file name and destination, then follow transfer, verification and saving progress in Downloads. Removing a download record keeps the saved file. If saving is interrupted because a folder needs unlocking, you can continue saving the downloaded content once access is restored.

Existing download records and unfinished files are retained. Older tasks without usable source or resume information require you to choose the source again.

The built-in browser supports multiple normal or private tabs, Find in Page, and desktop or mobile website mode. You can end a browsing session or clear website data.

Private browsing does not save browsing history. Files you explicitly save remain in the selected folder; clearing website data does not delete them.

Import files from Files or other apps while keeping originals and existing files with the same name. Wi-Fi Transfer supports selecting multiple files at once. Compatible desktop browsers can also upload folders while preserving their structure, except for empty folders.

Downloads, uploads, copies and ZIP / RAR extraction preserve existing files with the same name. Document previews, text subtitle previews with encoding selection, sharing and Open In have also been improved.

Step-by-step guide: Transfer files to GoodPlayer over Wi-Fi.

You can restore local files and folders moved to Recently Removed. Moving items there alone does not free up storage. The cumulative updates through 12.13 fix permanent deletion.

1. Open Recently Removed in File Manager.
2. Tap Edit and select the items to delete.
3. Choose Permanently Delete to free up storage.

Newly removed files appear directly in Recently Removed, without an extra enclosing folder. Duplicate names receive suffixes such as -1 and -2. Removed folders retain their structure, and previously removed items remain accessible.

Use the in-app language setting to choose a language or Follow System, then restart GoodPlayer to apply the change.

Choose to resume automatically, start from the beginning, or be asked when a saved position is available. Playback positions distinguish files with the same name in different folders.

Updates through 12.13 fix seeking in some network MKV and TS videos where the picture could remain near an earlier position. They also improve network TS duration display, pause and resume, and rapid Play/Pause switching.

Video fits within the unobstructed screen area by default. With gestures enabled, spread two fingers to fill the screen with proportional cropping, or pinch inward to show the full picture.

After downloading a subtitle, choose a media file to play with it. This applies only to the current playback, without changing the original subtitle or creating a permanent association.

The inactive Retina Display, Color Space, iPod and iPod Fullscreen settings have been removed. Hardware decoding and the player’s full-screen control remain available.

Multilingual ASS subtitles have fixes for missing characters shown as boxes. Subtitle placement around playback controls is improved, including while paused or resizing the window, with a fix for a crash when loading external subtitles.

Step-by-step guide: Use external subtitles in GoodPlayer.

Use USB File Sharing, Wi-Fi upload, or import from Files or another app. Import the video and its external subtitles, then follow the subtitle guide to select or match them.

GoodPlayer 12.13: See restoring files, permanent deletion and freeing up storage. The instructions below are historical.

There are 2 methods to delete files in GoodPlayer.

2.1 The 1st method, in the GoodPlayer application video files list ,swipe left
and right for the file needed to be deleted,then a delete button will
come out,click the button ,the video file will be deleted. The point
is swiping your finger left and right over the listed file.

2.2 The 2nd way, use iTunes by iTunes file sharing,you can check all the
video files on GoodPlayer,select the file to be deleted,press the
"Delete" key on your pc,then confirm the file deletion.

Chrome browser is suggested for uploading, since Chrome has the uploading progress indicator in the lower left corner.

Reopen Wi-Fi transfer in GoodPlayer, keep the app in the foreground and connect the computer and device to the same local network. Use the complete address currently shown by the app, check the destination folder and available storage, then retry incomplete files.

For large files, USB File Sharing is another option. See Wi-Fi transfer troubleshooting.

Check the destination in File Browser first and confirm the transfer finished. Use Settings → Interface Style to switch between Media Library and File Browser.

The library lists included media. A file appearing in File Browser does not mean indexing is complete. Keep GoodPlayer in the foreground and check Automatically Include Local Media; see local media discovery.

GoodPlayer 12.13: See resume and playback controls. The instructions below are historical.

Need to touch the "Done" button to remember the resume location.

GoodPlayer 12.13: See iOS 18 / iPadOS 18 requirements. The instructions below are historical.

This application needs Cortex-A8 or Cortex-A9 CPU for installation and running. For the special iPod Touch 3 8GB model, please double check the CPU requirements.

Inbox folder is a special system folder, So please do not upload file to Inbox folder, and do not create sub-directory in "Inbox" folder

GoodPlayer 12.13: See restoring files, permanent deletion and freeing up storage. The instructions below are historical.

Just same as delete file, ,swipe left/right on the folder to get the "Delete" button, or delete it from iTunes file sharing

GoodPlayer 12.13: See the built-in browser and website access. The instructions below are historical.

Now for URL input, the GoodPlayer needs http://192.168.1.10/test.avi like specific streaming media URL, does not open web page in GoodPlayer.

Yes. But it is up to other applications to support this feature also. This feature needs both sides support it.

If the GoodPlayer could not meet your requirements, you could request the refund. Please contact Apple as soon as possible, since the refund is a limited time only option provided by Apple. Sorry for the inconvenience.

It can be done by the HTTP or FTP streaming.

The Mac comes with built-in HTTP and FTP file sharing, so you need no
other streaming server installation. Mac -->System Preferences
-->Sharing---> Web Sharing is for HTTP.

Mac -->System Preferences
-->Sharing---> File Sharing --->Options is for FTP.

After sharing the files from Mac by HTTP/FTP:
1. Input the URL in the GoodPlayer, it can playback. URL example:
http://192.168.1.10/test.avi
ftp://username:password@192.168.1.10/test.avi
2. Write a web page with goodplayer:// url scheme,such as
goodplayer://http://192.168.1.10/test.avi
goodplayer://ftp://username:password@192.168.1.10/test.avi

Then open the web page from iOS devices, click the goodplayer:// link ,the files will be played back. Please note the FTP comes with password/username.

Since the API limitation, this TV-out feature is for iPad & iPhone 4 & iPod Touch 4 only, please note iPod plugin playing in application does not support TV-out, only native application playing support TV-out, and also please note that iPhone 3GS and iPod Touch 3 do not support TV/VGA-out feature .

Since the iTunes files sharing does not support folder, so the only
way is uploading files to created folder by Wi-Fi.
1. Create folder.
2. Click Wi-Fi in app
3. Use browser from PC/MAC to upload files to the new folder
Note:Chrome is the suggested browser, it is the most stable in the
testing and it comes with uploading progress indicator.

If you can get a live TV URL, just input it to enjoy it on GoodPlayer.

If the live TV is not available on the Internet, you can build your own live stream. For example, use VLC software to steam out the TV to UDP or RTP streaming, then enjoy it on GoodPlayer by the following URL:

udp://@192.168.1.182

rtp://192.168.1.182

Or created a web page with goodplayer:// URL

goodplayer://udp://@192.168.1.182

goodplayer://rtp://192.168.1.182

Please note the "@" in the UDP steaming URL.

GoodPlayer ---->Setting---->Upper right button---->Online Help

Note: need Internet connection to access the online help.

Start with containers and codecs, then compare local and network playback using the performance checklist.

For initial troubleshooting, provide GoodPlayer and system versions, device model, media codecs and the error message.

19.1 Click the lower left corner file manager icon,enter the new file manager
19.2 Click the lower left corner "new folder" icon, create some new folders
19.3 Click "Edit" button
19.4 Use the circle left to the files, select one or more file(s) to be moved
19.5 Click "Cut" icon on the lower bar
19.6 Go to the destination folder
19.7 Click "Paste" icon on the lower bar, the files will be moved to the new folder
19.8 Go back to the Documents folder , then click "GoodPlayer" button to go back to media file list mode and enjoy the files

GoodPlayer ---> Settings ---> Click top right corner button --->Email Feedback , the GoodPlayer version number is in the Email title

GoodPlayer 12.13: See using downloaded subtitles with a media file. The instructions below are historical.

During HTTP/SMB streaming, the app will automatically check the app's root folder(the default folder for "iTunes File Sharing" and Wi-Fi sharing file uploading) and the app's Download folder(the default folder for GoodPlayer downloader) for subtitle files.
So please first upload/download the subtitle files to the above 2 folders. If the movie name is filename.avi , the subtitle file name is something like "filename.en.srt" or "filename.fr.srt". If there are more than one subtitle tracks, swipe fingers up/down on playing, to change the subtitle or turn off subtitle on the fly.You can change other subtitle setting in GoodPlayer--->Settings--->Subtitle Setting, you can set subtitle encoding, font size, etc...

1. Just upload the srt/idx/sub subtitle files with the same name but different file extensions to the iPad/iPhone/iPod Touch (for local files playback, please upload the subtitle files to the same directory with media files; for network streaming, please upload subtitle file to root folder or Download folder)
2. If the movie name is filename.avi , the subtitle file name is something like "filename.en.srt" or "filename.fr.srt" (or "filename.en.smi","filename.fr.smi"), then play back the avi file , the subtitle will show up
3. idx/sub subtitle files is special ,the filename should be "filename.idx" and "filename.sub"
4 . After the subtitle is okay, you can change other subtitle setting in GoodPlayer --->Settings--->Subtitle Setting, you can set encoding, font size, etc...

Manually subtitle selection supported, click the playback control information button, then click "Select Subtitle". This feature is useful when the automatic subtitle match does not work. For example
some UPnP servers will change the filename strings in the URL, so the automatic subtitle match would not work.

GoodPlayer ---> Settings ---> Subtitle Setting-->Encoding, please
choose the correct encoding method for your subtitle here.
One safe method is to transcode the subtitle to UTF-8 encoding if you
can not find the right encoding for it.

Below is the Subtitle Encoding and its general names table:
Default Default (Windows-1252)
GB18030 Universal, Chinese (GB18030)
UTF-8 Universal (UTF-8)
UTF-16 Universal (UTF-16)
UTF-16BE Universal (big endian UTF-16)
UTF-16LE Universal (little endian UTF-16)
Windows-1250 Eastern European (Windows-1250)
Windows-1251 Cyrillic (Windows-1251)
Windows-1252 Western European (Windows-1252)
Windows-1253 Greek (Windows-1253)
Windows-1254 Turkish (Windows-1254)
Windows-1255 Hebrew (Windows-1255)
Windows-1256 Arabic (Windows-1256)
Windows-1257 Baltic (Windows-1257)
Windows-1258 Vietnamese (Windows-1258)
Windows-874 Thai (Windows-874)
ISO-8859-2 Eastern European (Latin-2)
ISO-8859-3 Esperanto (Latin-3)
ISO-8859-6 Arabic (ISO 8859-6)
ISO-8859-7 Greek (ISO 8859-7)
ISO-8859-8 Hebrew (ISO 8859-8)
ISO-8859-9 Turkish (ISO 8859-9)
ISO-8859-10 Nordic (Latin-6)
ISO-8859-11 Thai (TIS 620-2533/ISO 8859-11)
ISO-8859-13 Baltic (Latin-7)
ISO-8859-14 Celtic (Latin-8)
ISO-8859-15 Western European (Latin-9)
ISO-8859-16 South-Eastern European (Latin-10)
ISO-2022-KR Korean (ISO-2022-KR)
ISO-2022-TW Traditional Chinese Unix (EUC-TW)
ISO-2022-CN-EXT Simplified Chinese (ISO-2022-CN-EXT)
ISO-2022-JP-2 Japanese (7-bits JIS/ISO-2022-JP-2)
KOI8-R Russian (KOI8-R)
KOI8-U Ukrainian (KOI8-U)
EUC-CN Simplified Chinese Unix (EUC-CN)
EUC-JP Japanese Unix (EUC-JP)
Big5 Traditional Chinese (Big5)
Big5-HKSCS Hong-Kong Supplementary (HKSCS)
Shift_JIS Japanese (Shift JIS)
System System codeset
CP949 Korean (EUC-KR/CP949)
VISCII Vietnamese (VISCII)

HD playback depends on the device, codec, resolution, frame rate and bitrate. Hardware decoding is on by default. Follow the HD playback guidance; performance limits of early iPads do not describe current devices.

If an existing local password does not unlock your files after upgrading, keep the app and its data and use Password Recovery Help for guidance. Resetting ordinary settings does not clear local passwords.

See the 12.07 upgrade notes for more information.

GoodPlayer 12.13: See SMB 2 / SMB 3 requirements. The instructions below are historical.

#5 MediaTomb UPnP MediaServer on Mac OS X

#6 TVMOBiLi

Check the actual audio codec and try another audio track. See current iOS audio support; the ISO extension alone does not establish audio compatibility.

Turn on "Lock Landscape" first, then play a video , rotate the iPhone
so the video change to landscape(note that your iPhone/iPad must not
be locked on orientation) , now the video is locked on landscape.
There is only "Lock Landscape", no portrait orientation lock.

Please make sure you do not use iOS system orientation lock. If iOS
system orientation lock is used, GoodPlayer could not rotate the
video. Check the upper right corner of your iPhone/iPad for a lock
icon.
http://www.theiphoneguru.net/2010/07/03/iphone-ios-4-tip-orientation-lock/ (Unavailable; the content may have been removed.)

Compare with a complete local copy, check hardware decoding, codecs and bitrate, then investigate network throughput. See playback performance and format compatibility.

GoodPlayer supports the AirPort Disk.
1. AirPort Disk is actually a SMB server
2. Find the IP address of the AirPort Extreme, it is the IP address of the AirPort Disk SMB server
3. Add the SMB server to the GoodPlayer SMB server list, then the AirPort Disk can be accessed from GoodPlayer directly.

See the current AirPlay and Screen Mirroring guidance to distinguish audio output, video streaming and screen mirroring. For Chromecast, use the separate casting guidance.

We changed the GoodPlayer download mechanism from the earlier downloader, so for some special sites, the download link can not be clicked directly in built-in browser.

Now the method to download megaupload file in GoodPlayer (this maybe also apply to some other sites):
1. open the megaupload
2. when the file download URL comes out, do not click it in
GoodPlayer. Instead, long press the URL link, copy the URL
3. go to the GoodPlayer downloader, the bottom right 2nd icon
4. the bottom right icon , to manually add this URL to the downloading list
5. start the downloading.

1. Share the Windows XP/Windows 7 files by SMB

http://www.howtogeek.com/howto/windows-7/share-files-and-printers-between-windows-7-and-xp/ (Unavailable; the content may have been removed.)

2. Access the SMB sharing in GoodPlayer
Here are the steps for SMB access
1. find the IP address of your SMB server first
2. GoodPlayer-->bottom right corner icon-->SMB/CIFS Client
3. Click the plus icon of the upper right corner
4. Input the 3 parameters here, make sure the User name is without space in it
5. Save
6. access the smb server and download/streaming from it

Update to the latest compatible version offered by the App Store while keeping the app and its local data. Check interface and library settings, uploaded-file visibility and playback troubleshooting. For server or cloud access issues, see SMB help and Google Drive authorization.

Do not start by uninstalling the app, which can delete local files. If the problem persists, describe the version, device, error message and reproduction steps to support.

We reply to every email for the production feedback. If you do not get the email response , please first check if the reply is in the email spam box. Or please check if the email is sent out correctly. And you can also feedback by Twitter and Facebook.
Twitter: @hustmobile
Hustmobile on Facebook: https://www.facebook.com/pages/Hustmobile-Inc/119082661507643?v=wall (Facebook sign-in required; page content not verified)

Check the current system requirements, inspect the media codecs and compare with a local copy. One file failing does not establish that every file with that extension is unsupported.

There are some changes in iOS 5. In iOS 5, you need to "long press" the attachment to get the "Open in" menu.

Here an alternative way we found to open mail attachment. The attachment sometimes never gets an "Open in" menu in iPad 2 with iOS 5.

1. Send the file as attachment to Gmail mail box
2. Use the GoodPlayer built-in browser to access the Gmail (https://mail.google.com/) , then download the attachment , play it at last.

For GoodPlayer 4.0 and iOS 5.0.1+, now the files will remain on device, even in low storage situations. Upgrade to iOS 5.0.1+ is recommended.

Please change Settings->File Manager-> iTunes Sync to "on".

For iTunes/iCloud Sync, we have already given an option to the end users in
the GoodPlayer settings. GoodPlayer->Settings->File Manager->iTunes
Sync, the default is "off" from 3.2 version, when this setting is
"on", the media files uploaded to GoodPlayer will sync with iTunes.
When this setting is "off", the media files in the GoodPlayer will not
sync with iTunes. For the iOS 5, when the setting is "on", the
media files in GoodPlayer will sync with iCloud, when the setting is
"off", the media files in GoodPlayer will not sync with iCloud.
From GoodPlayer 2.3, the option was added to disable iTunes Sync file
backup, this can save a lot of time and disk space when the iOS device
sync with the iTunes.
Please Note: for the first time the iTunes Sync is turned off, the
most safe testing way is to exit the desktop iTunes , and restart the
desktop iTunes , then sync the iOS device with iTunes. It was found
sometimes the iTunes Sync setting does not work immediately, maybe it
has something to do with the cache.

Check the subtitle encoding steps:
1. Open the original subtitle file on desktop PC with Firefox browser
2. In Firefox->View->Character Encoding, to change the encoding one by
one , find the correct encoding method for the subtitle file

WMV files can contain different video codecs. Check the actual codec and file integrity, then follow the format compatibility guidance. The WMV extension alone is not enough to diagnose the issue.

No. Because of the YouTube TOS (Term of service), GoodPlayer can not support downloading video from YouTube.

No.GoodPlayer cannot support Axis password protected RTSP streaming. Please remove the password protection then check it anonymously.

And if the audio is needed for Axis RTSP streaming, please use the following format.

rtsp://192.168.1.65:554/axis-media/media.amp?videocodec=h264&audio=1

GoodPlayer DVD .iso support details:

There is no DVD menu support in GoodPlayer.

a. For local iso playback:
DVD .iso support improved.
DVD title supported, now by default GoodPlayer will only play the
"Title 1" of a DVD .iso. For other titles playback, during the DVD
.iso playback, in the bottom right of playback control, click Info
button, click "Title".
DVD chapter supported, during the DVD .iso playback, in the bottom
right of playback control, click Info button, click "Chapter".
DVD .iso audio tracks selection improved

b. For network iso streaming:
Please use the following GoodPlayer feature to select audio tracks:

Current iOS support differs from early versions; see current audio support. Check volume and the selected output device, then try a supported audio track. Old notices about removing AC-3 or DTS do not require finding an old app version.

Or please check this website: https://kodi.wiki/?title=NFS

Confirm the server supports SMB 2 or SMB 3, then compare playback of a fully downloaded local copy. If the local copy also fails, check the file’s codecs. If only streaming fails, check share access and network throughput.

Follow the current SMB and NAS guide. Download success with playback failure does not, by itself, identify the workgroup name as the cause.