dd cd image

Osmany Guirola Cruz osmany.guirola at cigb.edu.cu
Fri Mar 18 04:19:59 PST 2005

Hi people
  I am trying to do an iso image of DATA CD and i am using this command line

%dd if=/dev/acd0 of=cd.iso
and this is the error

dd: /dev/acd0: Invalid argument
0+0 records in
0+0 records out
0 bytes transferred in 0.000304 secs (0 bytes/sec)

How can i made and iso image of a data cd ?

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