The UL is the external drive and I am connected by firewire. I'm using Ulead to make DVDs of mpegs I've captured
with a PVR-250 (about 1.2gb per file).

PC is a P4 2.4ghz, 512MB RAM, 7200rpm HDD.

So... Rob.... you think the PC may be incapable? I'm going to get a couple of branded discs tomorrow to see if it makes a difference. Maybe USB would be a better bet?

Edit: I forgot to mention that the discs are labelled 8x and I can select this in the pre-burn menu. It just reverts to 3x in the status bar.