[Cog 3478] Export mp4 video(audio only) to separate audio files

[MaxGave]

Hi dev!

I downloaded several music videos, for example this one: https://www.youtube.com/watch?v=aaKrmYwaOkk.
When I open it with Cog, I get a neat list of songs that are included in the hour-long audio file. Amazing! Thank you for making this! And for making it free!

But how would it be if we could also export the songs as separate files with Cog? In that way selections of songs are possible. Wouldn't that be even more wonderful?

Thanks,
Max