Batman: Vengeance making it work on SCPH-10000

[LJ]

Great News Japanese PS2 fans!!! Batman: Vengeance is playable on our unit!!! But I nid help first. In order to make Batman:Vengeance the same volume as the TOC of our utility disc, u just have to downsample the .pss files and not rip anything. But I cant get it to load on my ps2...here are the steps that I did to make it fit on a 74 min and correct me if there is something I missed or have done something wrong.
1. I patched the batman .bin file with the paradox universal patcher and burned it on my cdrw.
2. I burned it back on my Hd, went to the directory with the .pss files, demultiplexed it with pss plex, used the dvd2avi to make the .m2v files into a dvd2avi project, opened TMPegnc or whatever its called, downsampled all the .pss files and replaced it to the original .pss files.

3. I patched it again with the Paradox Universal Patcher, disregarded the warnin (This may not be a playstation 2 image file...Continue?)

4. I opened Nero, mode 2/xa mode, ISO 9600, ISO2 31 chars. ,no multisession and burned it. oh yeah i Changed the slus to PBPX_952.01. A total of 69 mins.

5. I booted it in my ps2 and to the paradox intro and *donk* it went back to the browser screen.

Ok so where did i go wrong??? I heard that you also have to change the system file (open it with the nopepad/wordpad) but whats the system file (i see a system icon but i cant open it with the notepad/wordpad)? Help/Guidance is needed. Tnx.