sonic2 keeps rebooting and rebooting...

[whatevaz_cleva]

i got a sonic adventure 2 with the files hacked to 11700. i isobusted it and all that and rehacked the bootfiles and made an iso just like the echelon self boot tutorial and it reboots continuously. i can see the game files when i put it in my computer but it must have an extra protection or something. has anyone else encountered this who knows how to fix it? thanks for anyone's help. later!