Thanks for your reply, but it is still troubling, a 4.7 GB DVD can hold max 120 minutes of Video. So two 45 minute video clips should fit easily.
I think that there may be a problem with how DVD Builder calculates remaining capacity. If time is the issue, the bar should be graduated in minutes, not capacity.
Either way you cut it, there is no way that DVD Builder should have reported itself full on a 2.5GB, 45 minute clip.
I am trying to use VideoWave to remove the commercials and re-render the file, but rendering is SLOOOOOW as it seems to be running in real time.
I shall see if I get any success.