I checked, and the specs on my drive, a Pioneer DVR-111D is supposed to be able to read DVD-Ram. My customer is going to remove the disc himself, so he assumes the risk.
Thanks for your suggestions
I also initially had a problem burning 8x media on my 4x G5 (Sony Drive). I went back to 4x media for awhile, and then, when I could no longer find 4x blanks, tried it again using Ritek discs. I haven’t had a problem since.
Glitches in the video, even ones that are not readily visible, will cause audio to drop out, but only out the firewire. It will still read on your meters and will be audible over the computer speakers.