![dreamcast iso file structure dreamcast iso file structure](https://multimedia.cx/eggs/wp-content/uploads/2017/12/dreamcast-rip-single-thread.png)
![dreamcast iso file structure dreamcast iso file structure](https://img.appnee.com/appnee.com/2020/Chankast-1.png)
However, buildgdi is still inserting some dynamic timestamps (and other metadata) into the modified data track. As a workaround, the hardcoded timestamp of -12:12:12 (UTC) is being used. As of now, no ISO extraction utilities (with the necessary LBA options) that I've researched successfully preserve timestamps on folders.
![dreamcast iso file structure dreamcast iso file structure](https://segaretro.org/images/6/66/NullDC.png)
Instead, the current day and time are used to generate the folder creation timestamp at the moment of extraction. This is partly due to an issue with gditools which does not preserve timestamps on extracted folders.
#Dreamcast iso file structure Patch#
File hashes of patched disc images (output) are not consistent even when using the same source disc image (input) and same patch file.While source disc images (input) with CDDA are supported, the DCP patch format does not yet include a method for modifying CDDA tracks.No CDI format support for source or patched disc images (input and output).Patched disc image (output) cannot be created in Redump-style CUE format.
![dreamcast iso file structure dreamcast iso file structure](https://media.sizious.com/screens/dc/vmutoolpc.png)
While Universal Dreamcast Patcher delivers its core features reliably, all known issues and limitations of the application are listed below. Supported formats for patched disc image (output):.Supported formats for source disc image (input):.Disc image patching with custom IP.BIN.Support for source disc images (input) with CDDA.Source disc image integrity verification.Fixed bug with source disc image integrity verification.īelow is a specific list of Universal Dreamcast Patcher's current features.Added support for source disc images with CDDA.The "bootsector" folder and its IP.BIN were erroneously being included as a folder and file in the patched GDI's filesystem.Fixed bug with incorrect GDI building when source disc image contains CDDA.Updated logo (also, watch what happens when the "Apply Patch" button is clicked).Changed location of temporary folders/files to use Windows' default location rather than the application's working directory.Fixed bug with temporary folders/files if they're written to a different disk drive than the one from which the application is launched.Now using modified version of gditools (thanks to mrneo240) that can extract the dozen-or-so problematic GDIs which previously failed.Due to many anti-virus tools erroneously flagging the modified version of gditools from v0.8 as malware, this version uses an alternative method for GDI extraction that still delivers the same level of compatibility, leveraging bin2iso and extract.Fixed bug in LBA calculation used for extracting GDI data tracks.The latest version of Universal Dreamcast Patcher is 1.0. Under the hood, this application utilizes gditools, buildgdi, bin2iso, extract, and a version of RedumpCUE2GDI modified by me. Due to the flexible nature of acceptable disc image input, file hashes are not utilized for pre/post-patching verification. This application will extract any disc image meeting those standards, overwrite and/or add to its data according to a given patch (DCP file), and then rebuild the disc image with the new data. Universal Dreamcast Patcher is designed to accept any disc image as its source, whether it be formatted as a TOSEC-style GDI or a Redump-style CUE. Such patches typically come in the form of English translations and other ROM hacks. Universal Dreamcast Patcher aims to provide an easy, cross-format game patching solution for the Dreamcast community.