Was able to read/burn CD's a week or so ago before upgrades. Tried to burn today but was unable -> "no medium found". Back tracked to mounting a known good ISO as root (mount /dev/hdc -t iso9660 /mnt/cd/) and still "no medium found". Symlinks appear to be good under /dev, lsmod shows modules are loaded.
Did I miss a config change during the upgrades?
Looks like I am having slowly degrading hardware issues, so this most likely is not an Arch issue.