Not sure if this is somehow related to updating to 10.3.7 or what. I updated when 10.3.7 became available, but hadn't stuck blank media in my G5 until a few days ago, and encountered this problem.
Blank media is no longer showing up on my desktop. Blank CD-Rs and DVD-Rs do not appear as an icon. Burned CD-Rs, burned DVD-Rs, DVDs and Audio CDs do show up as icons. Obviously I've got my finder prefs set to 'show CDs, DVDs & iPods'. Apparently, the optical drive in my G5 still recognizes that the media is there, because it let me burn a DVD. Is there something obvious I'm missing here?