This article is from the CD-Recordable FAQ, by Andy McFadden (firstname.lastname@example.org) with numerous contributions by others.
CRD-BP4 (40x16x10/2MB;SCSI, also in 4MB)
CRD-BP1400P (40x16x10/2MB;IDE, also in 4MB)
CRD-BP1500P (40x24x10/2MB;IDE; 'U' is USB)
CRD-SBP15A (32x24x10/2MB;IDE, portable, for OEM only)
CRD-BP1500U40X (40x40x12/4MB;IDE, external is USB2.0)
[ Sanyo stopped selling CD recorders somewhere around 2002. ]
Firmware v1.10 or later is highly recommended for the CRD-R800S. For some
reason, the firmware update was only available on the "BURN-Proof" web
site at http://www.sannet.ne.jp/BURN-Proof/. [ It doesn't seem to be
there anymore. ]
It looks like Mirai Technologies (http://www.mirai-technologies.com/)
resells these drives.