[clug] Unique Id's and CD's

Brett Worth brett at worth.id.au
Thu May 7 01:41:56 GMT 2009

Jack Kelly wrote:

> /dev/cdrom | sha1sum ?

Of course that assumes that /dev/cdrom is executable.  Which it probably isn't.  Maybe you

    sha1sum < /dev/cdrom

    cat /dev/cdrom | sha1sum

The down side of these methods is that to determine the unique ID of the cdrom requires a
full read which takes a while.  It'd be nicer if the unique id was perhaps written into
the cd label at burn time.  Depends on whether the requirement is for new cds or for all cds.


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