Re: Adaptec 1200a not reading DVD drive's
Note: The Adaptec ATA RAID 1200A supports only hard disk drives. Do not connect any ATAPI devices (CD-ROM, LS-120, MO, or removable media drives) to the Adaptec ATA RAID 1200A controller. Doing so can damage the Atapi device as well as the 1200A controller.
1200A user manual