SuperSparks, yes it's readable in Explorer, Directory Opus, ThumbsPlus, Isobuster, CD/DVD Diagnostics (which gives it the normal "good with a few soft errors"). It seems there is something it does not like about the disk, which is why I mentioned the burning relaxations. My previous disks would have had the same types of files and same deviations from ISO 9660. The disk title is the same length and format as previous.

When I scan my other disks, NeroCD/DVDSpeed briefly disappears then reappears and starts the scan. The file listing appears in the bottom box. With this disk, none of that happens. It hangs before the dialog disappears. It does it with both copies of the same compilation, in both of my dvd drives, and at read speeds less than, and including, maximum.

I am completely stumped. Fortunately the disk is perfectly usable.

Starman*