can't access cdrom as regular user

[chip]

I can't access my cd drive on my regular login. I get this message -

CD-ROM read or access error (or no audio disc in drive).
Please make sure you have access permissions to:
/dev/acd0

So as root I set the permissions to 777 on acd0, then after a reboot the 
permissions were reset back to what they were previously. What do I have 
to do to get access to my cd drive on my regular account?