1. iR Shell is a multi-tasking shell (temporaray XMB replacement) that can let you listen to music, veiw photos, play games, use your PSP as an infared remote, etc. Being a multi-tasking shell, you can have your own mp3's playing as music in the background of your favorite homebrew, or while viewing photos, etc
2. Put the folder(s) in the game folder then put the neogeocd bios in the folder with no %
3. No idea
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