Sony Vegas Pro 9 - 13 - Here is FIX solution to .mp4 green screen video/stuttering - YouTube
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Easy Fix MP4 Can't Import/Read/Open in Sony Vegas Pro 18/17/16
Sony Vegas Pro – Darren's Small Biz Tools
Open MP4 Files in Sony Vegas Pro
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FIX] Sony Vegas Mp4 Issues | No Video Track, Only Audio [2018] - YouTube
Have recently been getting this issue with VEGAS 16 where i cant import any of my mp4 files. The codec for the video file is: MPEG-4 AVC. Any help? : r/VegasPro
How to Render MP4 in Sony Vegas 15 Pro for VHS and VHS-C Captures - Life of a Geek Admin