Maybe a dumd question but i'm wondering if my old burnt out 721 that provided me with well over 1500 burns would still make for a safe and good reader...or is it junk?
Maybe try to rip from your burnt 712 and playback the iso in your comp?
I don't think you have anything to worry about, tender37. The MTBF for PX-712A is 60,000 hours. 1500 burns at 8X take 250 hours. You do the math.