I am a new user of Vegas Pro 13. I'm not understanding why I can open some MP4 files but not others. For example this opens:
Codec: H264-MPEG-4 AVC (part 10) (avc1)
but this won't:
Codec: MPEG-4 video (DX50)
Both files play perfectly in Videolan and I copied the codec info from that program.
Is there any way to get Vegas to open these files?
Thanks!
Peter