Bob Cain wrote:

Hard
drives packaged so close to analog recording circuitry are problematic
due to the high di/dt noise they generate. You won't find a HD unit
with real pre-amps for this reason and even the line in devices have
noise well above -96 dBFS.

Unless you spend over $2k and buy a professional HD recorder. Until Q1 2005, you actually have to spend over $3500.