Game hangs on starting load screen

[nmagod]

Specifically [Prinny_Can_I_Really_Be_The_Hero_USA_PSP-pSyPSP] hangs on the "Now Loading" screen on boot, while the untouched ISO runs fine in Adrenaline. I don't know enough about how this works to offer thoughts on why it might be.

[LiEnby]

the native vita ISO parser is alot more strict than the one that was on a CFW'd PSP .

it checks things such as sector locations, that the executable is signed, update pbp files are present and probably alot of other stuff we dont know about yet.

things that popular UMD building tools like UMDGen the homebrew one, not sonys one do incorrectly.

some PSP RIPS had people simply extract all the files from the disc and build a new ISO using it. might work on the PSP. but the vita is way more picky.