Cannot burn - Norcent CD RW 52x32x52

need help. running xp. cdrw reads cd’s, can play games, but cannot burn anything (data, picture copy, music). tried many applications. goes thru burn process, and near end, i get various burn errors. tried several different medias, and lowered the burn speed…no change. also, went to norcent (http://www.norcent.net/supportDetail.asp?ID=77&CAT=OPTICAL%20DRIVES). when i went to run the flash program, get a message that says “this firmware cannot flash”. help! thanks - john