UMDGen

UMDGen (for Windows) is a free disc image tool that allows you to create and edit ISO images so that they are UMD compliant. Once edited and converted the ISO files can be run on the PSP platform, (PlayStation Portable). General disk image tools such as WinImage are shareware and do not handle the PSP formats.

Features:

• The lightweight software program uses little CPU and RAM
• Supports ISO, DAX, and CSO formats
• Drag-and-drop files
• Resizing dummy data and removal of unnecessary padding for efficient data storage
• Specify compression value

A free tool for creating, editing and compressing PSP disc images in ISO, CSO and DAX formats

UMDGen is a Windows freeware application that is used to edit ISO files or create new ones that are compatible with the PlayStation Portable. It runs on 32-bit and 64-bit editions of Windows. UMDGen can apply PPF patches to an image, generate a missing UMD_DATA.BIN file and change the PSP_SYSTEM_VER value in PARAM.SFO. The last release, version 4.00, dates from December 2006, and the program is no longer developed. It is mainly used by PSP homebrew and modding enthusiasts to prepare their images.

UMDGen offers a user-friendly GUI for easy modification of images. The window is split into tabs: Explorer for the directory tree, Layout for the sector map, UMD Properties for disc and PARAM.SFO data, Sector Viewer, and Batch Image Converter for converting several images in one pass. Import and export of ISO files can be done using a simple and elegant drag and drop method. The single most valuable feature of this program is the ability to specify compression value in order to free up disk space.

UMDGen is a lightweight software application that doesn't take a lot of computing resources to run. It is a small download that is easy-going on the CPU and RAM, and it does not slow down your other programs. Unlike many commercial disk image tools, UMDGen does not cost any money. It is available to PSP users free of charge.