Need Help Booting DVD-r backups!!

[sjaved]

hi all
ive got a Pal PS2 alongwith a USB Sbox Modchip. I need to play the Final Fantasy X Dvd-r and i use a AR2 V2. All the CD-r backups work fine, but i dont know how to make the FFX dvd-r work. The only original game i have is Zone of Enders, but all the methods ive tried dont work(the holding the RESET button and shit). Any ideas on how to make it work???