I had the same problem. Samsung tech support was a joke - I spoke with three different morons who all read me the same page from the same manual, until finally the last one opined "Uuuhhh, it must be broke - can you return it?"
I just got the Samsung YP-T7 yesterday from an online store and my computer will not recognize the player when I plug it in with the USB cable. The player doesn't even turn on or anything. I am not sure what to do but I think I might be missing DISKDRV.INF I am running on windows XP

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