More than 90 minutes

[Brent Radbourne]

I would like to save more than 90 minutes to a DVD using iDVD3 but 90 
minutes seems to be the limit.  If I could save the iMovie as a disc 
image I could use DVD2oneX to compress the movie down to 4.4 gb.  But 
there doesn't seem to be a way.  On the jewel box for the blank dvd it 
says the capacity is 120 minutes at high density and a lot more and the 
lower qualities, but how do you do it?

Brent