/dev/cdrom, /dev/scd0, /dev/sg0 ?

[Qian Gong <q.gong@tue.nl>]

Hi,

I am using CDRDAO to record CDs. I add the user to group cdrom to enable
the access to /dev/scd0 (linked by /dev/cdrom). But I got an error
message 'Cannot map "/dev/cdrom" to a SG device." It seems the user
should have to ability to access /dev/sg0. What's the relationship
between /dev/scd0 and /dev/sg0? Thanks in advance.

BTW, cdrdao works well by root.

Qian