honestly, it doesn't matter...
i have two hdds, one of them is on the same ide channel (secondary) as my cd-rw and it writes entire audio cds from it fine (meaning that it's more than just copying data, it's converting it and copying it)...and it's a slow 5400rpm ata33 8.4gb maxtor.
as far as nero goes, no problems either in both win2k and win98se.