newbie needs help

[montyinc]

i have just got my ps2 modded with the messiah chip. psx 1 backups play great. i have just tried to backup tekken tag(ps2 game)and cannot get it to go. i have clone cd 4 and have tried using cdrwin and am getting no where.have looked at the tutorials and believe all i have to do to get a backup is the same i do for ps1 games.could i have a problem with the messiah chip or am i missing something when i try to backup ?

thanks
monty