man chdman (Commandes) - MAME Compressed Hunks of Data (CHD) manager

NAME

chdman - MAME Compressed Hunks of Data (CHD) manager

chdman -option chd

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

-info input.chd: Dump the header information from a drive image.
-createhd inputhd.raw output.chd [inputoffs [cylinders heads sectors [sectorsize [hunksize]]]]: Create a new compressed hard disk image from a raw file.
-createblankhd output.chd cylinders heads sectors [sectorsize [hunksize]]: Create a new non-compressed hard disk image, with all hunks filled with 0s.
-createcd input.toc output.chd: Create a new compressed CD image from a raw file.
-copydata input.chd output.chd: 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.
-extract input.chd output.raw: Extract a raw file from a CHD image.
-verify input.chd: Validate the MD5/SHA1 on a drive image.
-verifyfix input.chd: Validate and fix the MD5/SHA1 on a drive image.
-update input.chd output.chd: Update CHD image using metadata from input file.
-chomp input.chd output.chd maxhunk: Chomp hunk from CHD image.
-merge parent.chd diff.chd output.chd: Merge a parent and its child together.
-diff parent.chd compare.chd diff.chd: Generate a difference between two CHD files.
-setchs inout.chd cylinders heads sections: Change the CHS values on a hard disk image.