I'm no expert here but at the very least you would have to use a loader in conjunction with the ISO. I'm not sure if that's what you were assuming.
That's a given SE. 3.30oe has the loader support and will boot ISOs dumped from UMD discs. I'm asking if it will boot ISO images pulled off a PSP DVD as those images are what's used to create the UMDs. PSPwill is saying that it won't, so I'm enquiring as to why. Only reason I can think of is that the dumps that you can run aren't clean dumps, but I haven't had a chance to play with 3.30oe so I'm just making some wild guesses here. Would love some input from folks who really know it. -hl718
Well when i tried to help someone here launch a dev game (sorry i dont remember the name) matheiulh said that do launch dev games the PSP needs a special dev firmware and when i was writing program to try and load the isos it didn't work.