Features of the M-Chip Mod Chip 1.Support：SCPH-5000X / SCPH-5500X (GH-023/GH-026) / SCPH-3900X 2. Fully support PS,PS2 media direct boot function (CD-R, D5, D9, DVD+R, DVD-R, DVD+RW, DVD-RW) 3. Multi safe system design - protect your PS2 console. 4. High compatibility hardware design no more match issue. 5. It is easily operated with single button switch. 6. Avoid Lens and moto drive damage.