Alright. So I've recently downloaded an ISO and I've wanted to try overwriting a pre-existing UMD with it so I can play it on my PSP without having to buy a bigger memory stick. Now. The problem is that all UMDs are write-protected and files can't be modified unless that's turned off.
From what I've heard, it is possible to remove this with certain homebrews that people have made. I was wondering if anyone knew where I can find them, if any?