Missing Hardware

[Gene Poole]

I'm running Fedora 9 on a custom AMD Phenom Quad-Core with 8GB RAM 
installed, 2-SATA hard drives (Seagate 500GB and Seagate 1TB); HP DVD/CD 
RW Dual Layer with Lightscribe.
Lo and behold, I've updated my running (this machine) from kernel 
2.6.25-14 to kernel 2.6.27.19-78.2.30 (?) and have experienced the 
following:

1. My dual-layer DVD/RW and CD/RW drive has disappeared (it was /dev/sr0)

The only messages I see that appear to be of concern are:

[root at jpdsys3 log]# cat messages | grep -i reset | more
Mar 22 14:46:30 jpdsys3 kernel: ata1: softreset failed (device not ready)
Mar 22 14:46:30 jpdsys3 kernel: ata2: softreset failed (device not ready)
Mar 22 14:53:55 jpdsys3 kernel: ata1: softreset failed (device not ready)
Mar 22 14:53:55 jpdsys3 kernel: ata2: softreset failed (device not ready)

All of the devices are SATA except the DVD drive.

How can I get /dev/sr0 back?

TIA,
Gene
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