Well, we’re about to see a lot UMD pirating. It’s now possible to copy a UMD and run it off a Memory Stick– copy the Lumines iSO to your Memory Stick’s root directly using iSOBuster or a similar application. When doing this, you should end up with a PSP_GAME directory there with all the game files in it, and also a UMD_DATA.BIN file in the MS root. Then simply install the Lumines Launcher by copying the files to your PSPGAME directory manually or via the previously-released KXpolit v1.50. Link.
Playing UMDs off the Memory Stick