Audio CDs not mounting

[Joe Zeff]

I'm using F14 with XFCE.  Until recently, all went well.  Last week, I 
tried mounting a new audio CD that I'd bought so that I could listen to 
it.  Nothing happened.  I tried with another new CD, and an older CD 
that I"d used before, with no change.  Checking /var/log/messages, I saw 
this:

Jul 28 14:07:21 khorlia kernel: [3792447.281593] sr 1:0:0:0: [sr0] 
Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Jul 28 14:07:21 khorlia kernel: [3792447.281604] sr 1:0:0:0: [sr0] Sense 
Key : Illegal Request [current]
Jul 28 14:07:21 khorlia kernel: [3792447.281615] Info fld=0x10
Jul 28 14:07:21 khorlia kernel: [3792447.281619] sr 1:0:0:0: [sr0] Add. 
Sense: Illegal mode for this track
Jul 28 14:07:21 khorlia kernel: [3792447.281632] sr 1:0:0:0: [sr0] CDB: 
Read(10): 28 00 00 00 00 10 00 00 02 00
Jul 28 14:07:21 khorlia kernel: [3792447.281650] end_request: I/O error, 
dev sr0, sector 64

I posted this on the fedoraforum and got suggestions of hardware 
problems.  Checking, I quickly learned that DVDs and data CDs mounted 
correctly.  Alas, they've run out of suggestions.  Checking today, 
there's been no change except that there are no longer any appropriate 
messages in the log.  (No, rebooting is not an option.  I'm not nuking 
51 days of uptime Just Because somebody says "it can't hurt.")  Does 
anybody have any idea what might be causing this?