Utility for Windows and OS X to assist with (re)building Dreamcast .gdi images from scratch
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.



Utility to assist with building Dreamcast .gdi images from scratch

When provided with a folder of data files, the IP.BIN bootsector, and optional raw CDDA tracks, this tool will automatically generate the data track(s) for the high density area of a GD-ROM image. It also generates the track TOC which is written into the bootsector.

A bootable GD-ROM requires the primary executable (usually called 1ST_READ.BIN) to be placed at the end of the final data track or it will not be loaded by the console. This requirement does not exist for MIL-CD's.

ISO9660 code was forked from .NET DiscUtils, with a number of modifications made:

  • When Joilet is disabled (which it is for this tool), don't output supplementary file tables
  • Reversed the order that DiscUtils outputs the ISO sections. (Directory Tables come before files now)
  • Fixed bug in non-joilet filename output. Filenames were not being appended with ;1 like they should be.
  • Added Start LBA offset for entire image
  • Added End LBA offset for entire image. Image will be padded to desired size.
  • Added End of last file LBA, if set all files will be pushed back in the image to this location.
  • Added properties to set most of the text identifiers (Application, Volume Set, Preparer, etc.)
  • Removed stuff not being used by this application, such as other image formats and filesystems.