gordine Posted October 10, 2007 Report Share Posted October 10, 2007 I have been running Retrospect 5.1 for several years on my G4 Mac without major problems, but lately I get an "Incompatible (unknown CD/DVD)" message when I insert a disk for backup. If I select "Proceed" the message "The disc is write protected. Please unlock it and try again" appears. I have tried different mfr. disks new and used but nothing works. Am I missing something - is there a simple way to unlock a disc? Thanks, Gordine Link to comment Share on other sites More sharing options...
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