> “too many imported mov files brings vegas to a halt!”
this is not true for MOV H.264 format (which is used in most DSLRs)
> “convert MOV to MXF for seamless previews”
afaik, this requires re-encoding => imo it’s not worth it
> “it can’t render multiple files, just multiple regions of a single file.”
yes, you need third-party converters or Vegas extensions
> “SO does anyone know a way to batch convert multiple mov files of a Canon dslr into a format that Vegas can easily handle, that doesn’t involve a MOV container?”
you can re-wrap MOV files to MP4 w/o re-encoding, for free! using command line utility ffmpeg.
You can find examples on the net