iDVD error while encoding, every time

I've been trying to burn a DVD with iDVD for 2 days now without success.

I keep getting 2 anomalies: the 1st is that randomly the drop boxes no longer show the footage that I've dropped into them but instead just start showing a white box. When previewing the DVD nothing appears in the drop boxes and no audio can be heard. To rectify this I have to quit iDVD then restart mt MacBook Pro.

The 2nd is that every time I try and burn a DVD either as a Disc Image or the real thing I get an error just after it renders the Menus (which takes about an hour!!) The error says something like "Error encoding/rendering"

Can anyone shed any light on this?

I'm running a fully updated iDVD 7.0 on a MacBook Pro with Leopard.

Thanks

Can't say I've seen this personally. A shot in the dark...

Are you using standard QuickTime sources and pictures, or some odd AVI or other Apple non-standard content?

The best fix I've found for my iDVD problems is using a cleaner disc on the drive. It might sound silly but it's worked a lot of the time. My MacBook is almost 2 years old, though, and even though I don't use the superdrive all that much it still seems to get dirty. I think the error messages I usually get are "media error/endcoding error."
Sorry, that's the best I've got to offer.

Ya know you revived a thread that's like near 10 months old

The OP never responded, so we're not even sure what the real problem was... Plus, considering the error also occurred when the OP was creating a disc image file, the problem extends beyond just the physical drive...