Im sure these may seem like imbecilic questions but My Yamaha HD CDR 1500 can record from CD to the hard disk in three ways Im aware of : 1. Copying from the machines CD player. It does this at 10x normal speed. 2. Copying from another CD player using an optical or coaxial lead. 3. Copying from another CD player through an amplifier and analogue input. Will the sound quality be significantly different between the first two methods dependent on the quality of the independent CD player or is it just a matter of 1s and 0s being copied directly onto the HD without any impart of character? Assuming a good quality CD player, is it a better alternative to record using a top quality amp via the analogue input or is the extra level of D/A conversion a disadvantage.