This article is from the CD-Recordable FAQ, by Andy McFadden (firstname.lastname@example.org) with numerous contributions by others.
Panasonic is part of Matsushita, so the units may also be sold under the
All units are flash-upgradeable. The CW-7501 should be at 2.0 or greater,
and the CW-7502 should be at vX.10 or later (1.10, 3.10, or 4.10 depending
on which recorder variant you have; check your current version). Upgrades
are available from http://www.acscompro.com/ (click on "Support") [site
was down as of May 2002?].
NOTE: there is a known conflict with the Diamond FirePort 40 and the
Panasonic CW-7502 CD-R drive. You should upgrade the 7502 firmware to the
latest (www.acscompro.com/support/s_cdr.htm), upgrade your FirePort 40
drivers (http://www.diamondmm.com/products/drivers/fireport.html), and
add "DisableAutoReqSense=1;do_SCAM=0;" to the FirePort driver (go into the
Win95 device settings, select the host adapter, click on Properties, and
select the Settings tab).
This problem may affect other NCR/Symbios Logic-based SCSI cards as well.
Falling back to the original (1.01) NCR SCSI drivers that come with Win95
should fix the problem.
NOTE: the 7502/7503 units may have a problem with writing near the end of
80-minute discs. The problem is fixed by a firmware upgrade. If you get
errors reading data stored near the end of the disc (e.g. errors creating
a disc image from a full 80-minute CD or CD-ROM), make sure you have the