Can mod chips colide ???

[H.H]

Well Dimmi, first thanks for the reply.
I did the exact steps documented everywhere:
1. Turned on PS2 with AR2 disc one inside.
2. It came up I opened the tray, inserted an original Tekken4 DVD (Is it a DVD?), and waited for 30 seconds.
3. Then I chose: Start game, no codes.
4. At this stage the instructions say, that you should press the eject button for 5 seconds until the light turns orange, HOWEVER, once I choose without codes, the tray opens automatically !!! and the light stays green. What I did then is press the eject for 2 more seconds, the tray ejected a bit more and the light turned orange, I quickly inserted the DVD-R, and then after 5 seconds the tray closed automatically.
5. Then I am supposed to press X to load the game, I press X and nothing happens !!
6. I tried to press x and o together (like I did with the s-box one), and then it says loading, but nothing happens.

Any idea's ?
Thanks.
H.H