Beatmania IIDX supplements
- 15: IIDX 15 DJTroopers specific stuff.
- bio2: Drivers for real BIO2 IO board.
- ezusb: Drivers and firmware binaries for a real ezusb (C02/D01) IO board.
- ezusb2: Drivers and firmware binaries for a real ezusb FX2 (IO2) IO board.
- misc: Various stuff. Check readme.
