What does this give as output:
There should be cdemu devices there and/or a cdemu directory, if not, you'll need to reinstall cdemu.
Registered Linux user number 389291
Laptop: Nec Versa p550, Pentium M 1.86GHz, 1024MB ram, x300, 80 GB HD, bluetooth, 2915BG Wlan card
Desktop: Amd Athlon x2 4200+, 2GB ram, Geforce 7300GT 512MB silent, 160GB HD in a nice centurion 534 case :cool: