I've used software ranging from CloneDVD2, Nero, and PowerISO in the attempt to have skip free movie viewing. It's gotten ridiculous for sure at this point. No matter what I use or what media I use, I continually get skips accompanied by pixilation every 5-10 seconds while trying to view the movie. I have the most recent firmware on my drive. It's a Lite-On 1673S. I'm seriously thinking of changing drive brands at this point after dozens of ruined DVD's.
A few tips to try for a better backup. Burn no slower then 4x and half the rated speed of the rated disc. So if they are rated at 4x or 8x then burn at 4x if they are 16x then burn at 8x. Make sure your DVD burner firmware is up to date. Use quality (Best Compatible) media that your DVD burner maker recommends. Do not multi-task make sure unnecessary programs are shut down. If your media is DVD+R media booktype it to DVD-ROM if burner is capable of bitsetting.
For movies use Verbatim blanks unless you can find disc that are made in Japan ( I can not find any around here ) so I use Verbatim DVDR- 16x and burn at 4x speed and make perfect backups