I don't know enough about UDF versions to comment on that, but a couple of things came to mind that you could try:
- try doing a transfer rate test with KProbe (it's found on the "Performance" tab)
- just copy the contents of the disc to your hard drive. It's sort of like a transfer rate if you time it, but it's the real thing, not a test
- there are various programs around that will do a check sum of your files, but I suspect that won't be very fast.
- send an e-mail to Erik Deppe. I've found him to be very helpful with questions and suggestions (as time permits). There are a number of contact addresses on the CD Speed home page, e.g. on http://www.cdspeed2000.com/go.php3?link=email.html