Didn't notice until now that my CD-RW/DVD player wasn't loading properly – you can tell how much I use it, eh?

I'd already built the kernel with the correct SCSI modules (see references, below). I'd also already added "hdc=ide-scsi" to my grub boot parameters.

What was left was the following:

/etc/devfsd.conf:

1. uncommented:

   # Give the cdrw group write permissions to /dev/sg0
   # This is done to have non root user use the burner (scan the scsi bus)
   REGISTER    ^scsi/host.*/bus.*/target.*/lun.*/generic PERMISSIONS root.cdrw 660

2. commented out:

   # Create /dev/cdrom for the first cdrom drive
   #LOOKUP     ^cdrom$         CFUNCTION GLOBAL mksymlink cdroms/cdrom0 cdrom
   #REGISTER   ^cdroms/cdrom0$ CFUNCTION GLOBAL mksymlink $devname cdrom
   #UNREGISTER ^cdroms/cdrom0$ CFUNCTION GLOBAL unlink cdrom

3. uncommented the following:

   # Create /dev/cdrw for the first cdrom on the scsi bus
   # (change ‘sr0' to suite your setup)
   LOOKUP      ^cdrw$          CFUNCTION GLOBAL mksymlink sr0 cdrw
   REGISTER    ^sr0$           CFUNCTION GLOBAL mksymlink $devname cdrw
   UNREGISTER  ^sr0$           CFUNCTION GLOBAL unlink cdrw

Result:

# cdrecord -scanbus
Cdrecord 2.01a14 (i686-pc-linux-gnu) Copyright© 1995-2003 Jörg Schilling
Linux sg driver version: 3.1.24
Using libscg version 'schily-0.7'
scsibus0:
    0,0,0  0) ‘MATSHITA' ‘UJDA720 DVD/CDRW' '1.03' Removable CD-ROM
    0,1,0  1) *
    0,2,0  2) *
    0,3,0  3) *
    0,4,0  4) *
    0,5,0  5) *
    0,6,0  6) *
    0,7,0  7) *

YAY!

References:

• How to get a CD-RW and CDROM working using Gentoo