Converted video can't be played

[dagwould]

My issue is I've converted an Iphone video into an MP4 in the player. When I export the file it changes to an MP4a extension (the a is not shown in the file name) and says the file cannot be played by the recipient. They requested the MP4 conversion so I'm wondering why a (a) is added and why they cannot play it.

[Lotesdelere]

Please open Tools -> Messages (set Verbosity to 2) before you start the playback, keep the messages window open during the whole process and then paste the full resulting log here or on Pastebin.com or on Justpaste.it if it's too long.

Also upload a short sample of your original problematic file to WeTransfer.com or Disroot.org and then post the link to the file here.
https://wetransfer.com
https://upload.disroot.org


Similar report:
https://forum.videolan.org/viewtopic.php?f=14&t=165346

There are other reports about conversion issues:
https://forum.videolan.org/viewtopic.ph ... 89#p508489

Try with a nightly build:
https://nightlies.videolan.org

Or use a dedicated video tool such as AviDemux:
https://avidemux.sourceforge.net