Details of burn
I burnt these disks in Toast mostly. Their settings were "DVD-Video" for the video folders and for data, I would burn the DVD-ROM (UDF) option half the time, and "Mac & PC" for the rest. I have about 50 Shintaro's that used to work fine and now don't. My issue is in mounting disks on my G5 that were burnt on my (same) G5 a year ago. I have not added any hardware upgrades and there is not much in the way of additional software on the system as I try to keep it pretty clean and lean. There are some software updates however. The OS updates to .8 & .9 in Panther were pretty poor for compatibility- I think this may be the issue but cannot be sure yet