I'm still trying to figure out how and the best way to be able to edit these files in VT5.3 also. I tried re-coding them in Adobe Media Encoder to MPEG2 Blu-Ray format and they weren't readable that way either. Going to try re-coding to uncompressed AVI. I think that may work, but the file size may be huge and VT may struggle to play them. If you come up with something that works, that will maintain the quality let me know, and I'll do the same.
Thanks,
Marty