In one of my present system configurations, my pc is setup with my C & D drives on a Ultra100 tx2 Ultra ATA controller card so I could free up the IDE channels on the motherboard.. In my original thinking, I moved the HDs to the Ultra ATA controller so I could copy CDs on the fly eg : from the 56x CD drive directly to my LG 12x8x32 cdrw drive w/o the need to write tempfiles to the HD before the burn. At anyrate, the present configuration werks, everything werks except copying CDs on the fly.. Nero/Easy CD Creator/Accoustica/Blindwrite etc all come up with buffer underrun errors as well as some other errors that I dont happen to recall at the moment. Could it be because the CD drive is reading at 56x but the burner can only write at 12x max? If so, is there anyway or any software aviable to configure my 56x drive and 12x burner to a matching speed? I dunno bout anyone else but making a stack of coasters is really frustrating and so is the need to waste tyme making tempfiles or MP3s from an original cd just to copy a cd.