have only managed to get one dvd9 to work with usbextreme/advance which was gt4 but that was patched/rebuilt with a very game specific kit. which website are you refering to about the patch. As far as i know there is no generic dvd9 patch for usbextreme/advance. There are generic dvd9 patches for internal ide drives & mod chips.
intel i7 3770k @4.4, ASRock Z77 Extreme 4, 16GB Corsiar Vengance 1600 ram, ATI 5850 BE, Antec 1 Case, Antec 1 550W PSU, emu0404, 120gb agility3 ssd OS, 2x60gbvertex2raid0 Games, 3 TB total sata2 Data. win7 x64.