It's possible but at very low speeds. IF someone wanted to spend the time to write a converter to convert PSX VPU sigs to DS GPU sigs and the likes. Not to mention a decrypter, and disassembler. Unless you know how to do that, and want to, it will NEVER (mark my words) EVER happen. EVER. EVER. EVER. EVER. In 9999999999999999999999999999999999999999999999999999999999 years.