japanese_cake (japanese_cake) wrote,

GDROM Explorer: version 1.6.2 is out (update)

In this new version, I added a feature for Deunan's GDEMU: you can now export a GDI dump. It basically copies all the tracks to a specified location, creates a new .gdi file and renames those files so that there are compliant to the DOS 8.3 format. You may say that there are some other tools that do so, so why not use them? Well, the interesting thing here is that GDROM Explorer can now patch the image for you to make your game region-free and bypass the VGA BIOS check. But remember, if the game does not support the VGA output, the only thing you get is a black screen). About the patches, since the data's integrity matters to me, I have added some code to re-generate the error detection and error correction codes (EDC/ECC) of the modified sectors. Thus, even after applying patches, your image is still valid from the yellow book stand point. It may be useful later in case the GDEMU, or any other hardware emulation of the GDROM drive board, embeds data integrity checks. Moreover, if you use tools to extract or re-build an ISO9660 from a modified image for which some sectors do not contain valid EDC/ECC data, you may get corrupted user data. The software may process a sector validation using the EDC/ECC data and since the user data has been modified, it may reach the conclusion that the user data contains errors that need to be fixed.
For those who have read Deunan's post regarding bad GDI dumps, this version of GDROM Explorer now checks whether the image tracks overlap and are not continuous. I do not have much time to test on my GDEMU broad but so far, if the image loads up in GDROM Explorer there is a good chance that it works on GDEMU.

[GDROM Explorer v1.6.2 Changelog]
- Fixed: Drag'n drop for file extraction (missing flag in the release build).
- Fixed: UI messages and typos.
- Fixed: Unable to open some CDI v3.5 files.
- Fixed: Horizontal scrolling in the file explorer.
- Fixed: IP.BIN TOC viewer does not display the right LBAs and sizes.
- Fixed: Cannot open any files when the app is in a network shared folder.
- Added: NAOMI binary encryption (for those that would like to test hacks).
- Added: Export GDI for GDEMU, with region-free and VGA patches (and also EDC/ECC data re-generation).
- Added: Edit menu to see possible user actions for a selection.
- Added: GDI track checks to ensure tracks are continuous and do not overlap.
- Improved: UI responsiveness when opening folders with hundreds of files.
- Cleanup: UI code.


Download link (updated): GDROM Explorer v1.6.2
Tags: dreamcast, gdi, gdrom explorer, naomi

Comments for this post were disabled by the author