Background:
Versions older than Vegas 10 use the QT 7 libs for decoding all things MP4. As we know, these libraries can be very picky when it comes to codec IDs and file extensions.
Here's a little trick I learned today while working with John Stebbins, a Handbrake developer. It allows some MP4 files identified as ISOM rather than MP42 to be opened in earlier versions of Vegas
Using the free utility MP4Box, use this command line (of course your directory and input filename must be correct):
This will change the codec ID and a few other things to something Vegas understands. Still may not work with high profile source.
Just throwing this out in case it helps someone.
Versions older than Vegas 10 use the QT 7 libs for decoding all things MP4. As we know, these libraries can be very picky when it comes to codec IDs and file extensions.
Here's a little trick I learned today while working with John Stebbins, a Handbrake developer. It allows some MP4 files identified as ISOM rather than MP42 to be opened in earlier versions of Vegas
Using the free utility MP4Box, use this command line (of course your directory and input filename must be correct):
MP4Box -brand mp42 input.mp4
This will change the codec ID and a few other things to something Vegas understands. Still may not work with high profile source.
Just throwing this out in case it helps someone.