In the past few months I've burned nearly 10 dvds all with the same results -- iDVD takes excessively long to fail to burn either a usable image or dvd. It ends by hanging ... forever. All the hardware and software are original. Is there a bug resulting from OS advances? Or iLife being too old?
Tried both Maxll and Verbatim from work ... same quick failure messages. So I switched to an external DVD burner. Old, but faster, connected through firewire. The original discs burned, not at 6x but 16x in the same time the failed discs left the fail messages.
Answer: it appears to be the drive not the software or the discs. Perhaps burn speed or perhaps damaged drive.