Thanks for clearing that up. My knowledge of PS2 HD's and booting elfs off the MC isn't as good as some other areas. You're right it wouldn't make sense, I just wasn't a 100% sure you couldn't boot HD Advance off a HD. What be the point of people buying the disc if you could just download it, and use Winhiip to transfer HD Advance to the HD, and boot it from there? Cheers!