Hi Chris2222

I suggest you run hwinfo or lspci in order to find the vendor id and the product id of your SATA or IDE controller connected to your CDROM. Then you can try to find out if there was any kernel driver for your hardware in Linux 2.6. If there is a driver for a later Linux 2.6 kernel you could consider to remaster Knoppix 5.1.1 with that kernel.