How to Fix Sony Vegas not Opening MP4 Files | Photography
How to Fix Sony Vegas Won't Open MP4 Issue – VideoProc
Can't Open MP4 Files in Sony Vegas Pro, Solved! - YouTube
Sony Vegas doesn't import mp4 videos but my older mp4 videos can be imported. I converted the vids that can't be imported into mp4 and AVI and MOV it still doesn't import
Overlay Text on a Video in Sony Vegas Pro - VisiHow
Oops (couldn't open, file was corrupted) : r/VegasPro