i know this thread is old, before anyone flames at me for doing this!! xD
I am using XBC v2.8 Build:0275 and i had problems backing up Halo 3 [from the Collectors Edition if anyone is interested] when it would freeze randomly at about 8-9%... Then i realised in the Options that there was an option to change the read speed. I have done this to 4.0x and so far there are no errors... Could this error be induced by certain games of a certain batch/press (meaning not all of the same game will require this) just need the game.iso to read in at a slower speed?
Screenshots:Default - 12x
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as you can see it failed at around 5%...
4x Proof
This backup went all of the way through... I dont know what made me try lowerin the read speed but it did the trick can anyone else who has problems ripping like this one above confirm this...