-reworked audio stream base to go through the actual disc interface code instead of a hacked one, that way starfox adventures should have enough time to properly enable its subtitles
-use the same fatfs settings as we did in the past
-minor cache sync corrections

git-svn-id: http://nintendon-t.googlecode.com/svn/trunk@240 6acfca08-c3de-247c-4448-9f1a92385553