On Jul 21, 2008, at 5:33 PM, mike wrote:

UDF has been around awhile and has in a PITA for mac users for awhile. You
might try asking the one who gave you the disks if they were
finalized...this might be the issue also.

The person who burned this might not even know it's UDF, let them know. Let
them know of more compatible ways to burn disks.

I agree with everything that you have pointed out. I searched out the issue and discovered that prior to Leopard, Macs had limited ability to read anything other than the plain vanilla UDF formatted discs. Windows Vista provides for writing the various levels of UDF, but prior to Vista, Windows machines were limited in how they could handle UDF discs as were Macs.

UDF is clearly not the way to go for compatibility, and yes, I'll tell the person who sent me those discs exactly that. I do have Leopard on my portable Mac, and I'll view those discs on that machine. The Mac I was initially trying to read them on runs Tiger, thus my problem in viewing anything other than plain vanilla UDF discs, which these are apparently not.

FWIW, my very recent standalone DVD player identifies these discs as video CDs, but will not read the data on them.

  Steve


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