I'm having trouble with my CD-Rom drive the manual says that its capable of Dma33 but I'm only getting Pio mode 4 my jumper is set to master and I check the manufacturer web site for help but found no information whatsoever about my CD-Rom,this is the model: E-IDE CD-ROM CR-852E,the box says that its manufacturer by CTX but nowhere on there website mentions CD-Rom.Thanks for the help.