The MOD files are MPEG-2 files. Feel free to rename the files filename.mpg or filename.mpeg since that is what they are.
The MOI files are not video files (if you look they are miniscule files vs. the MOD files) - they are files to tell the camera what is where and what is what. Ignore them.
You can, with the $20 Apple MPEG-2 component, open and edit and export to QT version in MPEG STreamclip quite well. Worth the $20.
If editing is not a huge deal you can use the MPEG-2 files (the MOD files remember) directly in Toast 7 - set the Toast preferences to never reencode, since it is a time waster to reencode already compliant MPEG-2 clips and you can make DVD's till the cows come home.
The best combo is MPEG Streamclip with the $20 component to open and trim your MOD (MPEG) files (since with the huge recording time on the JVC you will have a lot of boring video that needs trimming), then save as MPEG, use the saved clips in Toast - voila, DVD's.
If you want to use the clips in iMovie, export to DV from MPEG Streamclip and those clips go into iMovie just fine.
You should understand the quality limitations of MPEG-2 as a recording codec, and really should use a DV (tape) video camera to record decent video for editing in iMovie or Final Cut.
