I have upgraded to 3.52 M33-2 CFW and have had non-stop problems trying to run ISOs in the ISO folder located in the root of the memory stick. I know there's posts about this already, but my aim is to narrow down already attempted and possible solutions. Even after I drag and drop an ISO into the PSP's ISO folder and attempt to run it in the XMB>Game from the memory stick, it says, "There are no games." I can say for a fact that I have a fake 4 GB memory stick and under the menu "MagicGate Supported" is says Unknown. This could be a possible reason. But are there any known fake 4 GB memory sticks running ISOs on 3.52 M33-2? I have also attempted compressing ISOs into CSOs using PSP ISO Compressor 1.4, but it doesn't seem to be working. I've also attempted going into recovery and enabling the Sony NP9660 -NO UMD- mode. I've also tried the mode that requires a UMD to be in the drive. Another thing I've tried was enabling the 1.50 kernel mode (Read somewhere on the forums about it), but doesn't this require you to drag and drop EBOOTs to a PSP>Game folder instead? I've even tweaked and reset the CPU speeds to default. So far, the only thing I can come up with is that my memory stick is the cause for being fake and/or the 3.52 M33-2 CFW just isn't ISO compatible enough yet. I suppose an additional solution would be to try to use UMDGen or roll-back to 3.40 OE. But if I do that, does the 4 GB fake memory stick still work for ISOs? It's just annoying that I can't seem to get the PSP to recognize any ISO in the XMB>Game memory stick. Lastly, is there anything specific that I need to do within Popstation in order for ISOs to be extracted correctly? Final Fantasy VII extracted an EBOOT.PBP and KEYS.BIN for each of the three discs. I've read that I should extract the ISO from the EBOOT.PBP and somewhere else that I just need to rename the EBOOT.PBP to a .ISO name. So nothing gets done to KEYS.BIN? Recommendations? Solutions? Best/most popular Popstation?