Thank you for the information.
Yes, I'm copying the entire movie, but I stip out the unnecessary stuff first. I'm using Memorex DVD's, and usually the compression is 70% upwards. I've been using Clone DVD.
The compressed disks play back O.K. on the L.G. burner, but not on the Toshiba. On the Toshiba, the first part of the DVD plays O.K., but about 30 minutes into it, pixelation starts until finally all playback stops when the Toshiba can't read it.
I'll try compression at a lower speed, or as you suggest, another program.