chdman(1)

NAME

   chdman - MAME Compressed Hunks of Data (CHD) manager

SYNOPSIS

   chdman option

DESCRIPTION

   chdman  is  the  (C)ompressed (H)unks of (D)ata (CHD) manager for MAME.
   It is a tool to manage CHD images.

OPTIONS

   Please note that each option allows a set of switches, the  meaning  of
   each  is  explained  in  the SWITCHES section below. Whenever the short
   form for the switch is listed, the long one may be used instead.

   help [option]
          Print a summary of the available options or, if option is given,
          a detailed list of the valid switches for the option.

   info -i filename [-v]
          Dump the header information from a drive image.

   verify -i fileiname [-ip filename]
          Validate the MD5/SHA1 on a drive image.

   createraw  -o  filename  [-op  filename] [-f] -i filename [-isb offset]
   [-ish offset] [-ib  length]  [-ih  length]  -hs  bytes  -us  bytes  [-c
   none|type1[,[...]]] [-np processors]
          Create a new compressed raw image from a raw file.

   createhd  -o  filename  [-op filename] [-f] [-i filename] [-isb offset]
   [-ish   offset]   [-ib   length]   [-ih   length]   [-hs   bytes]   [-c
   none|type1[,[...]]]  [-chs  cylinders,heads,sectors]  [-ss  bytes] [-np
   processors]
          Create a new compressed hard disk image from a raw file.

   createcd -o filename [-op filename] [-f] -i filename  [-hs  bytes]  [-c
   none|type1[,[...]]] [-np processors]
          Create a new compressed CD image from a raw file.

   createld -o filename [-op filename] [-f] -i filename [-isf offset] [-if
   length] [-hs bytes] [-c none|type1[,[...]]] [-np processors]
          Create a new compressed laserdisc image from a raw file.

   extractraw -o filename [-f] -i filename [-ip  filename]  [-isb  offset]
   [-ish offset] [-ib length] [-ih length]
          Extract a raw file from a CHD image.

   extracthd  -o  filename  [-f]  -i filename [-ip filename] [-isb offset]
   [-ish offset] [-ib length] [-ih length]
          Extract a hard disk block image from a CHD image.

   extractcd -o filename [-ob filename] [-f] -i filename [-ip filename]
          Extract a CDRDAO .toc/.bin, CDRWIN .bin/.cue, or Sega  Dreamcast
          .GDI file from a CHD-CD image.

   extractld  -o  filename  [-f]  -i filename [-ip filename] [-isf offset]
   [-if length]
          Extract a laserdisc image from a CHD-LD image.

   copy -o filename [-op filename] [-f] -i filename [-ip  filename]  [-isb
   offset]   [-ish  offset]  [-ib  length]  [-ih  length]  -hs  bytes  [-c
   none|type1[,[...]]] [-np processors]
          Copy all hunks of data from one CHD file to  another.  The  hunk
          sizes  do  not need to match.  If the source is shorter than the
          destination, the source data will be padded with 0s.

   addmeta -i filename -t  tag  [-ix  index]  [-vt  text]  [-vf  filename]
   [-nocs]
          Add metadata to the chd.

   delmeta -i filename -t tag [-ix index]
          Remove metadata from the chd.

   dumpmeta -i filename [-o filename] [-f] -t tag [-ix index]
          Dump metadata from the chd to standard output or to a file.

SWITCHES

   --chs, -chs cylinders,heads,sectors
          Specifies CHS geometry values for CHD harddisks.

   --compression, -c none|type1[,[...]]
          Which compression codecs to use (up to 4).

   --force, -f
          Force overwriting an existing file.

   --hunksize, -hs bytes
          Size of each unit, in hunks.

   --ident, -id filename
          Name of ident file to provide CHS information.

   --index, -ix index
          Indexed instance of the metadata tag.

   --input, -i filename
          Input file name.

   --inputbytes, -ib length
          Effective length of the input in bytes.

   --inputframes, -if length
          Effective length of the input in frames.

   --inputhunks, -ih length
          Effective length of the input in hunks.

   --inputparent, -ip filename
          Parent CHD's input file name.

   --inputstartbyte, -isb offset
          Starting byte offset within the input.

   --inputstartframe, -isf offset
          Starting frame offset within the input.

   --inputstarthunk, -ish offset
          Starting hunk offset within the input.

   --nochecksum, -nocs
          Do not include this metadata information in the overall SHA-1.

   --numprocessors, -np count
          Limits the number of processors to use during compression.

   --output, -o filename
          Output file name.

   --outputbin, -ob filename
          Output binary file name for extractcd.

   --outputparent, -op filename
          Parent CHD's output file name.

   --sectorsize, -ss bytes
          Size of each hard disk sector.

   --tag, -t tag
          4-character tag for metadata.

   --valuefile, -vf filename
          Text file containing data to add.

   --valuetext, -vt text
          Text for the metadata.

   --unitsize, -us bytes
          Size of each unit, in bytes.

   --verbose, -v
          Output additional information about the operation.

SEE ALSO

   mame(6), mess(6)

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