[Nolug] /dev/scd0 is not a valid block device

OK, I really don't understand how block devices work. I have an
external CD burner, (1394), that works great through cdrecord. I can't
seem to mount the thing, though. I used to be able to, but after a
combination of unplugging and replugging the cord, compiling a new
kernel, and other random system modifications, I get this when trying to
mount

I had set all this up to work about a year ago, and I don't remember how
I did it, because I didn't understand what I did. So a few questions:

--How can the date be 1994...I built this system in 2002.
--How can I make sense of what is being used, and how, in the /dev
structure?
--Is there a set of instructions for NON-programmers that explains this?

TIA...A

root ~# mount /mnt/cdwrite/
mount: /dev/scd0 is not a valid block device

root ~# grep cdwr /etc/fstab
/dev/scd0 /mnt/cdwrite iso9660 noauto,user,rw 0 0

root ~# cdrecord -scanbus
Cdrecord 1.11a24 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
Linux sg driver version: 3.1.22
Using libscg version 'schily-0.6'
scsibus1:
        1,0,0 100) 'SONY ' 'CD-RW CRX160E ' '1.0e' Removable CD-ROM

root ~# ll /dev/scd0
brw-r----- 1 root disk 11, 0 Jul 18 1994 /dev/scd0

-- 
Alex McKenzie     alex@boxchain.com     http://www.boxchain.com
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