On 6 Jul 2004 16:09:21 GMT, "Chelvam" wrote:

Thank you, your explanation is precise and useful. Appreciated.

To clarify one point - oversampling has *nothing* to do with error
cortrection. Data redundancy and error correction are achieved via the
use of a cross-interleaved Reed_Solomon code (CIRC) data structure
which scatters the data around the disc in such a way that even
drilling quite large holes in the disc will not cause any data loss.

It should also be noted that as a result, the data structure on the
disc bears no simple relationship to the analogue output signal, so
the notion that any effect on data reading can translate to such
effects as 'muddy bass', or 'splashy treble' is quite ludicrous.

"Cosworth" wrote in message
...
If they are not read because
of light scattering or any other reason, you get errors which are often
corrected because of redundancy built into the system (oversampling), but if
they're not read you don't get less hi-end or muddy bass--you get skips and
chirps.
--

Stewart Pinkerton | Music is Art - Audio is Engineering