Burning with DJ

Can anyone make a good explanation on how to burn games with DJ 3.xx? I mean, if I have a working DC game on a CD-R and I want to make a copy of it how should I so it?
Using DJ on Mode 1 works for most Non-Self Boot games and for some Self-boots, but it doesn't seem to work with all... why?
And how the hell can I burn CD-DA games? Each time I try to make an image of one of this games DJ gives me an error message and stops.
And finally after making images of some games(Like ShenMue CD 3 I think) they will have more than 80min how can I put this on a CD?
Anyone knows the settings for DJ so that we can burn most of the games with no problems?

Thanx