There has been several posts about OE firmware causing the UMD to act like it's inoperable/dead. This personally happened to me. The supposive fix "which also worked for me" was to turn the PSP off. Turn in back on, and open the UMD and close it. You might have to do this a few times but end result is your UMD drive magically lives again. It should work for you as well uless you do indeed have a bunked UMD drive.
