GAME, GAME150 and GAME3xx: These folders are reserved for homebrew and PSX games. Now let's get back to the MP_ROOT folder: As far as I know, they don't affect the operation of the memory stick with the PSP. You can either leave them there, or delete them. MEMSTICK.IND & MSTK_PRO.IND: These files are created when you format your memory stick with the PSP. I advise you leave this folder alone and just use the folders in MP_ROOT. VIDEO: This folder is supposed to be able to play videos, but if you've converted your videos to MP4 format using software like PSP Video 9 or 3GPConverter, they won't work in this folder. I've already covered installing plugins in a previous post, so refer there to learn more. Seplugins: Plugins for custom firmware go inside this folder.

PSP: This folder contains homebrew, saved games and browser data. This folder supports up to one level of sub-folders, just like the MUSIC folder. The PSP can only read JPEG, TIFF, PNG, GIF and BMP formats, so make sure you have converted your pictures to these formats before you attempt to view them. PICTURE: You can place picture files here for viewing in the PHOTO menu on the PSP.

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