How To Boot Games Off USB (External Hard Drive) With PS2/PSTwo Using SwapMagic.

(1) Plug your USB device into your PC and make sure it's formatted to FAT32.
(2) Make a folder on it called (and yes, it is case sensitive) SWAPMAGIC.
(3) Download uLaunchELF v4.41.
(4) Unzip uLaunchELF, copy BOOT.ELF file to SWAPMAGIC folder.
(5) Inside SWAPMAGIC folder, rename BOOT.ELF to SWAPMAGIC.ELF (all upper case).
(6) Plug your USB device into your PS2/PSTwo system.
(7) Put SwapMagic DVD to your PS2/PSTwo system and launch Open PS2 Loader or other ELF files.