# cdrwtool

## NAME



           cdrwtool - perform various actions on a CD-R, CD-RW, and DVD-R
    


## SYNOPSIS



           **cdrwtool -d** _device_ **-i | -g**
    
           **cdrwtool -d** _device_ **-s [**_write-parameters_ **]**
    
           **cdrwtool -d** _device_ **-q [**_write-parameters_ **]**
    
           **cdrwtool -d** _device_ **-m** _offset_ **[**_write-parameters_ **]**
    
           **cdwrtool -d** _device_ **-u** _blocks_ **[**_write-parameters_ **]**
    
           **cdrwtool -d** _device_ **-b** _b_mode_ **[**_write-parameters_ **]**
    
           **cdrwtool -d** _device_ **-c** _blocks_ **[**_write-parameters_ **]**
    
           **cdwrtool -d** _device_ **-f** _filename_ **[**_write-parameters_ **]**
    
           **cdwrtool -d** _device_ **-r** _track_ **[**_write-parameters_ **]**
    
           **cdrwtool -h**
    


## DESCRIPTION



           The **cdwrtool** command can perform certain actions on a CD-R, CD-RW,
           or DVD-R device. Mainly these are blanking the media, formatting
           it for use with the packet-cd device,  and applying an UDF
           filesystem.
    
           The most common usage is probably the `quick setup' option:
    
                  **cdrwtool -d** _device_ **-q**
    
           which will blank the disc, format it as one large track, and write
           the UDF filesystem structures.
    
           Other options get and set various parameters of how the device is
           set up, and provide for different offsets, modes and settings from
           the defaults.
    
           The usefulness of most of the options is not explained.
    


## OPTIONS



           Main directives:
    
           **-d** _device_
                  Specify the device to use. eg. _/dev/sr0_
    
           **-i** Print disc track info.
    
           **-g** Print write parameters.
    
           **-u** _length_
                  Make a UDF filesystem using _length_ number of blocks.
    
           **-q** `Quick setup': blank the disc, format it as one large track
                  and write a UDF filesystem.
    
           **-m** _offset_
                  Format the disc at _offset_ number of blocks.
    
           **-b** _mode_
                  Blank the disk using a _mode_ of `full' or `fast'.
    
           **-f** _filename_
                  Write file.
    
           **-c** _track_
                  Close track.
    
           **-r** _track_
                  Reserve track.
    
           **-z** _length_
                  Fixed packet length.
    
           **-s** Set write parameters determined by **-l** , **-w** , and **-p** options
                  for the disc.
    
           **-v** _version_
                  Specify the udf revision to use. Valid revisions are
                  0x0201, 0x0200 and 0x0150.  If omitted, **mkudffs** udf-version
                  is 0x0150.
    
           **-h** Prints a sparse help message.
    
           Write parameters:
    
           **-t** _speed_
                  Set write speed. (Defaults to 12x ?)
    
           **-l** _type_
                  Set multi-session field. Either `0' (default), `1', or `3',
                  corresponding to `No B0 pointer. Next Session not allowed',
                  `B0 pointer = FF:FF:FF. Next session not allowed', and
                  `Next session allowed. B0 pointer = next possible program
                  area' respectively.
    
           **-w** _mode_
                  Set write mode. Either `mode1' or `mode2' (default).
    
           **-p** _type_
                  Set packet type. Either `0' or `1' (default), corresponding
                  to variable and fixed packet sizes respectively.
    
           **-o** _offset_
                  Set write offset.
    


## BUGS



           Many modern drives refuse on the preparations to format new,
           blanked, or appendable CD-RW media. This causes a message like
    
                  **Command failed: 55 ... - sense ...**
    
           The remedy is to use a CD-capable burn program for writing a
           session and closing the medium. For example by using any of
           "cdrecord", "wodim", "cdrskin", or "xorriso -as cdrecord" as
           content of variable **prog** in:
    
               prog="xorriso -as cdrecord"
               drive="/dev/sr0"
               dd if=/dev/zero bs=1M count=10 | $prog -v -eject dev="$drive" -
    


## AVAILABILITY



           **cdrwtool** is part of the udftools package and is available from
           https://github.com/pali/udftools/.
    


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