If you work with ISO format files often, then this lightweight application can make your life easy. UMDGen works with ISO files and can be used to edit or create such files, which are compliant with UMD.
After converting the ISO file to the compliant version, these files can be run on the Sony PSP system. Mainly, it is a tool for backing up your Sony games, which you own legally.
Some of the features of UMDGen include resizing the dummy data and removing unnecessary padding for efficient data storage. So, overall you can expect highly efficient operations from this application without requiring much of your resource. Also, this application is free to use. Therefore, you can enjoy backing up your games very quickly.
UMDGen allows you to back-up your PlayStation games and convert the ISO files to UMD compliant files.