Sirdarcy69

It won't let me attach the files as they are too big (total of 40MB)

Here is the link: https://www.youtube.com/watch?v=clX7SBsAb8A&t=4s I downloaded the video stream and audio stream separately using the Firefox add-on "You Tube Video and Audio Downloader" so I can get the 480p...

I changed the names as suggested but it crashed all the same

I checked both files and they work perfectly. So it's not the video/audio files. Mp3 conversion also crashes the converter. here is the log:  I just tried to upload...

Yep, that was the problem indeed! The FFmpeg exe had only downloaded partially. An idea might be to add a progress bar and a way of checking that it has...