The following are the only hard drives that have been tested and recommended by Yamaha:

Toshiba model number MK1214GAP
IBM model number DARA206000

IMPORTANT: The PSR9000 and 9000PRO will ONLY format and utilize up to 8 GB of the available disk space on any drive no matter what size it is.

The Yamaha part number for the MK1214GAP is 'PSR9000 HD' and can be ordered through a local Yamaha dealer. Click here to locate a local Yamaha dealer.

CAUTION: Although other IDE hard drives will work, it is advised that consumers should be cautious about purchasing hard drives other than the ones that are recommended here.

Reference: PSR9000 Version 2 Owner's Manual, p. 130 and 131
Reference: 9000PRO Owners Manual, p. 164 and 165