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)