I have an Optiarc 7200. When I burn a long audio CD and check it with CD Speed disc quality test (Benchmark test, too), I notice a downward spike on the graph, always around the 68:00 mark.
Yet, there are no C2 errors. When I copy the tracks onto my hard drive with Exact Audio Copy, there aren't any C2 errors.
Why would this happen without C2 errors?
Why would it always happen in the same spot on the disc? Could this have to do with the software (I use Roxio on this computer)?