Something

james@DAVROS-NIX:~$ eject
james@DAVROS-NIX:~$ sudo apt-file update
Put CDROM labeled [Ubuntu_7.10__Gutsy_Gibbon__-_Release_i386_(20071016)] in the cdrom device
read: 1: arg count
mount: block device /dev/scd0 is write-protected, mounting read-only
mount: /dev/scd0 already mounted or /media/cdrom0 busy
mount: according to mtab, /dev/scd0 is already mounted on /media/cdrom0
cp: cannot stat `/cdrom/dists/gutsy/Contents-i386.gz': No such file or directory