DEAD OR ALIVE 2 JAP

[coione]

DOA 2 jap
I extracted the track 1 (264MB)with nero 4.0 and i copied the contents of the dvd (1GB......?)into the hd.
It has this data:
dead or alive 2(folder,1GB)
inside:
modules(folder,371kb)
dummy100.bin(97.4MB)
rom_00.bin(937MB)
slps_250.02(3.71MB)
system.cnf(54byte)
But with nero and cdrwin there was also a track that i extracted.......and it has a size of 264mb......... it's probably the game

How can i create a working backup?
Have someone copied this game with the dvd rip process? It's the first psx2 dvd! And there isn't a tutorial!! Please help