How To Fix MP4/AVI File Import Error on Sony Vegas Pro - How to Batch Convert Videos Using HandBrake - YouTube
Solved] How to Fix Premiere Pro MP4 File Import Failure
how to fix mp4 video files that won't play - green video in Vegas - YouTube
First time ever using Vegas and Im trying to import MP4 files but it will not let me. Ive already set Show warning for media which is not suited for editing to