downloading a course from torrent, it has files split (into audio and video) and are encrypted. the files "play" separately but no audio or video. author hasn't replied neither on torrent site
How to Merge MP4 and M4A Files Together?
Combine MP4 and M4A ( No Hassle at All) - YouTube
How to Merge MP4 and M4A Files into One | Leawo Tutorial Center
How to Merge MP4 and M4A Files into One | Leawo Tutorial Center
ffmpeg - Batch converting MP3 and still image PNG to MP4 videos - Super User
Online m4a Joiner - Merge m4a Files Online, Free - VEED.IO
Can mux.js produce a demuxed mp4 (m4a,m4v) from a muxed .ts · Issue #265 · videojs/mux.js · GitHub
MP4とM4Aを結合する3つの方法
How to Merge MP4 and WebM Together | 4 Quick Ways
ffmpegでmp4をdemuxしたりmuxしたり - Qiita
![Free Download] Convert M4A to MP4 on Windows/Mac/Online - EaseUS](https://multimedia.easeus.com/images/multimedia/video-converter/screenshots/select-mp4-in-video-converter.png "Free Download] Convert M4A to MP4 on Windows/Mac/Online - EaseUS")
Free Download] Convert M4A to MP4 on Windows/Mac/Online - EaseUS
MP4とM4Aの動画を結合する方法
StaxRip 2.0 Support Thread - Page 73 - Doom9's Forum
Megui 2876 .264 extensions ??? - VideoHelp Forum
MP4 / M4A Format Customization in Audio Converters for Mac OS X - Amvidia
Combine MP4 files using FFMPEG on Windows (without re-encoding) - Linglom.com
How to Merge MP4 and M4A Files Together?
![Top 3 Tips to Combine MP4 and M4A Files [2021]](https://www.joyoshare.com/images/guide/add-background-music.jpg "Top 3 Tips to Combine MP4 and M4A Files [2021]")
Top 3 Tips to Combine MP4 and M4A Files [2021]
How to Merge Video Files Using FFmpeg - Bannerbear
How to Merge MP4 and M4A Files Together?
How to Merge MP4 and M4A Files Together?
![Top 3 Tips to Combine MP4 and M4A Files [2021]](https://www.joyoshare.com/images/resource/ffmpeg.jpg "Top 3 Tips to Combine MP4 and M4A Files [2021]")
Top 3 Tips to Combine MP4 and M4A Files [2021]
MP4 M4A結合ソフト（Windows/Mac）・オンラインサイト・アプリ（iPhone/Android）おすすめ｜無劣化・無料
![2022 best app] Properly Combine Multiple MP4 and M4A no quality loss - YouTube](https://i.ytimg.com/vi/Eglq1UD1QiU/hqdefault.jpg "2022 best app] Properly Combine Multiple MP4 and M4A no quality loss - YouTube")
2022 best app] Properly Combine Multiple MP4 and M4A no quality loss - YouTube
