The device, \Device\CdRom0, has a bad block. Anybody know what this message in the error log means? The device, \Device\CdRom0, has a bad block. Does it just mean that the computer tried to access the cd drive when there was no cd there? Does it mean that there was a bad portion of a cd the computer tried to run? Does it mean something is wrong with the cd drive itself? Does it mean something else entirely?