req: Help muxing streamed source - VLC plays , MPC-BE and PotPlayer do not.

[FredThompson]

Source is Azure video:

https://learn.microsoft.com/en-us/shows/exam-readiness-zone/preparing-for-ms-100-plan-...cations-4-of-4

Using browser dev tools and searching for "manifest" on page load reveals this source URL:

https://learn.microsoft.com/video/media/881eaa73-7c50-4e1d-a0c9-b9b6fb875c43/Exam_Prep...t=mpd-time-csf)

youtube-dl.exe -k --merge-output-format mp4 "URL" retrieves video and audio streams separately then muxes them.

The resultant muxed file plays properly in VLC but there are periods of no audio and sync is not proper with MPC-BE, PotPlayer, or even Windows Media Player.

I've tried both muxing the separate originals and remuxing the ffmpeg-muxed mp4 with MKVMerge but the audio remains improperly synced.

Would someone please tell me how to mux these so the result plays properly?

[ElCap]

plays fine for me with vlc, wmp and potplayer.
i downloaded and muxed it with yt-dlp.

[cedric8528]

Download your video with this extension for Chrome

https://chrome.google.com/webstore/detail/video-downloader-professi/elicpjhcidhpjomhibiffojpinpmmpil