perhaps i better clarify what i am doing, ( JLMS/liteon 166S dvdrom ( standard latest firmware )
my computer+explorer cannot see the contents of the dvd at all.
using this very easy tutorial:
http://www.xbox-scene.com/articles/extract-iso.php
xiso (
http://www.yursoft.com/index.php?pagina=xboxutils.php )can see the contents + extract the full contents ( just over 4 gigs ).this is how i applied the nude

patch to the default.xbe & datadvd.afs files from DOAXBV
( the link i provided translated from spanish to english w/alta vista expains it better )
somehow xiso can do this with whatever software it uses ( much like isobuster extracting a full dual layer dvd i guess )
my original question should have been can the games be played off the extracted iso only.