squeeze mplayer autocomplete -dvd-device path

[Bob <spam@homeurl.co.uk>]

I tend to watch my DVDs off my nas box as my HTPC has no moving parts & 
I don't want a whining optical drive in the room.

I use a command like

mplayer -aid 128 -channels 6 -af hrtf -dvd-device /mnt/smb_rip/ dvd://1

or if I'm not using my headphones

mplayer -aid 128 -afm hwac3, -dvd-device /mnt/smb_rip/ dvd://1

on Lenny I paste that line into terminal & then go to the end of the 
dvd-device option hit tab twice and get a list of all my pending DVDs, 
this no longer works on squeeze.

Does anyone know how to re-enable autocomplete for mplayer in squeeze?

Thanks