Need help

[Tsubaru]

Here with me i have some selfboot games, from a friend. But i just can't copy them, because the images are bigger then 700mb. I was able to copy the nonboot games to selfboot games, doing this:
1. CDRWin, create the image. .bin and .cue
2. bin2boot
3. CDI2Nero
Done. Nonboot games to selboot games.

But the selfboot, it's killing me.
Extract de files direct from Explorer and burn, don't work.
Try CDRWin to extract just de data track, he can't.
I've used the new, dir2boot, the selfboot screen appear, with my logo on it, but it goes to the bios of the DC.

I need to make this games nonboot, to selfboot again, to smaller size images.