output the length of an iso9660 filesystem
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outputs the length of an iso9660 file system that is
contained in the given file. That file may be a normal file
or a block device (e.g. /dev/hdd or /dev/sr0). In the
absence of any switches (and errors) it will output the size
of the iso9660 filesystem in bytes. This can now be a large
number (>> 4 GB).
Show the block count and block
size in human-readable form. The output uses the term
"sectors" for "blocks".
Only has an effect when
-x is not given. The value shown (if no errors)
is the iso9660 file size in bytes divided by number.
So if number is the block size then the shown value
will be the block count.
The size of the
file (or block device) holding an iso9660 filesystem can be
marginally larger than the actual size of the iso9660
filesystem. One reason for this is that cd writers are
allowed to add "run out" sectors at the end of an