Am I doing something wrong?

[masjj]

My PS2 (SCPH-30003) was chipped about 10 months ago and I have been managed to play backups of the small number of PS2 CD games using action replay 2 (version 2.02).

I recently got a DVD-R/RW burner (Pioneer AV-05) and tried to make a DVD backup (World Rally Championship 2) using InstantCD/DVD v6.5 and branded media @ 1x. The burn process worked fine but I'm having trouble booting the disk. My main problem is I don't know what modchip I have, my installer said he didn't know?!

My PS2 CD backups work with the EA Boot Method (PS2 Backups)
for the Neo 2.2 (note: Normal Boot Method didn;t word), but the DVD one didn't. I'm still making my way through the list of boot up methods but was wondering whether anyone has had similar problems, or whether anyone had any idea what chip I might have.