I've been searching around the internet for sometime for help on this error (80020001) and also how to install PSPMAME. I've been trying to use PSPMAME version 0.97 on my PSP. I put the taito file on my PSP and the icon appears on the menu and when I open it the loading game screen opens then the screen turns black and the error pops up. I have put neogeo cd on my psp and that works for me. Some help would be appreciated.
BTW I have firmware version 1.50 and I only put the folder, pspmame04tt in my PSP\GAME section(unzipped) I don't know what to do with the folder named pspmame04_src. I probably installed it wrong HELP please