The differences in sound result produced by corrupted data stream are definately worth to mention, but I think that in case of VariREC there is not such a issue to be solved. As Plextor says, VariREC reduces the jitter (noisy, slightly out of phase signal) the recording signal, as you adjust the VariREC settings through the recording software, before writing. The settings are expected to vary according to the media used. I agree with you that for specific A/D and D/A circuits, the results will depend on the quality of the data stream. So, VariREC produce more accurate data? Theoritically it could, but the question is whether those improvements are noticable when you have the output from your speakers...