iMovie and iDVD

[steviebee]

Not sure if this is one for here or Computers and Stuff but here goes anyway:

I have iMovie 3 as part of the bundle with iLife. My Mac hasn't got a Super Drive so I cannot access iDVD. Can you substitute the SuperDrive for an external DVD burner?

Also, does iDVD compress video files? I have an iMovie that is currently topping out at about 12gb and with RDVDs having a capacity of only 4.2, I feel I may have a problem...but as most movies are 1.5 hours long and mine is just 30 mins, I'm guessing there's a way round it.

Thanks in advance.

[steviebee]

Thanks Marshy. Looks like MacWarehouse is going to be about £1,400 richer this weekend (and me £1,400 lighter!)!

My 12gig iMovie is a home movie from DV so it should all work fine.

Thanks again.