Speaking on a video posted showing the slowdown/problems of some games being played off the sd-card on dreamcast.if he was to do a triple pass defragmentation on the ISO those games would probably work. I had the same issue on the Knight Raizer, but when i learned about the special defragmenter....and did it...everything worked! If i didnt have so many projects i would murder this thing!
This is from a Raizer04 guy from the moddedbybacteria forums.
What on earth is he talking about?