I have been trying to research this and have not been getting very far.
I have an IOMagic CD-R/W 40x12x48 installed in a PIII under Win2K Pro. It came bundled with Nero Express, and I also run Wavelab (see below for version).
After the initial install of Nero and the burner, all seemed OK. I then installed Wavelab 4.0g and had some issues with burning audio CDs where the first track would not play correctly. I could burn at speeds between 4X and about 24X and settled on 16X. All was well except for the #1 track problem.
I upgraded to Wavelab 4.01b and the track #1 problem vanished… along with all burn speeds between 4X and 24X! When I insert a Memorex CD-R, the burner reports possible burn speeds of 4X, 24X, 32X and 48X.
My question is… is this the burner telling me that it cannot burn at anything except those speeds, or is there something wrong? I have updated the ASPI to no avail. Interestingly, when I re-installed Nero (under the assumption that perhaps Wavelab overwrote something important) the in between speeds came back… for about 30 seconds. And then went away again.
I think the fact that the speeds appeared and then vanished is a clue… Win2K will (I think) automatically replace a system file that gets overwritten… but I am not sure which one it might be replacing!
I have not been able to find any information on the web about exactly where the “possible burn speeds” come from. I gather they are generated by the burner, but I am wondering if the software also plays a part…