How can I use dd to copy a  CD?   The command below does not
work - I presume I have failed to understand something.  I have tried other
devices begining "acd".

209 ~# dd if=/dev/acd0c of=x1
dd: /dev/acd0c: Invalid argument
0+0 records in
0+0 records out
0 bytes transferred in 0.000219 secs (0 bytes/sec)
210 ~#
211 /dev# ls -l acd*
crw-r-----  4 root     operator  0,13568 Dec 21 2002 19:33 acd0a
crw-r-----  4 root     operator  0,13568 Dec 21 2002 19:33 acd0c
212 /dev# ls -l racd*
crw-r-----  4 root     operator  0,13568 Dec 21 2002 19:33 racd0a
crw-r-----  4 root     operator  0,13568 Dec 21 2002 19:33 racd0c
213 /dev#






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