you dont help when you post zero knowledge. was you even try the copy for yourself ? the game works fine on PC emulator, done.
otherwise mdf images are not standard for a psp game. it need a redump as iso file.
second point, you can play every iso beta copy on psp or vita, since iso is standard, no need for any devkit.
result = NO devkit needed for any prototype. thats the point here.
Even when you have a Devkit, you can maybe play the mdf file on it, but you can not make a ISO-FIX, you know why ? because you stupid fuck dont have the original untouched data files. only the owner can do this. the same example with duke nukem psp beta copy where a devkit was used to fix a eboot iso and its not working as standard, only emu.
and giving the answer to use google is mostly hatefull here, this is all no help from you.
you only post a picture for no reason and even dont understand the question of a playable ISO .....
the nfo on hiddenpalace is outdated since years and no one was report the mdf mistake.