Audio CDs get "The disk you inserted was not readable by this computer"

Hi All,
This a near-duplicate of a message originally posted to the Snow Leopard forums.
A couple months ago I upgraded to 10.6.4 from Leopard and configured a Boot Camp partition running Windows 7. Yesterday I discovered that whenever I put any audio CD, retail or burned, into the Macbook's drive I now get this message - "The disk you inserted was not readable by this computer" - with the options to ignore or eject. Disk Utility displays no unusual information, but a check of the system log on Console turned up this:
Sep 8 11:05:21 Hard-Drive diskarbitrationd17: unable to probe /dev/disk1 (status code 0x00000047).
Has anyone encountered this problem before? I suspect it's related to Boot Camp but not to the initial installation - CD reading worked fine right after the install. Note that this only affects CDs - Burned and retail DVDS read without any trouble.
P.S. The CDs tested include one just out of the shrink wrap, so please, no "have you checked your CDs they may be scratched" replies.

Thanks, but no thanks. This is a software/hardware (driver?) issue, not a hardware issue alone. I kept a bootable backup copy of my 10.5.8 installation on an external drive, and a quick restart into that yields a desktop where CDs still load perfectly. I'm looking for power users with specific experience with this particular error and insights into what is causing it in 10.6.4.
Message was edited by: mlach, who is tired from simultaneously troubleshooting this and an X11 error and has forgotten how to type.

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