DVD drive copy problem

I was using "Easy DVD-Video Copy Pro" to back up some of my DVDs that have become a bit scratched, and it used to copy them without any kind of problem, but lately it just doesn't want to work anymore. Whenever I try to copy a DVD, the copy process itself works just fine, but when I go to burn the disc, after about 20 seconds it spits it right back out telling me the "process completed successfully" when in fact it hasn't even started burning yet. And it does this no matter what quality DVD I'm using (I'm still using the same Brand I've always used, but I've also tried more expensive brands, no change). Seems to me that something is telling the program that its doing what it's supposed to when in fact nothing happens.
When I emailed the support people, their suggestion was to try and use another program, Easy DVD Clone, and when I try to do that, again, copying works just fine but when I go to burn the disc, I get the following error message:

Writting failed, exception 8, status 31, text
'CStarBurn_ScsiTransportASPI::ExecuteCDB(): Command failed'

Is it my DVD drive? Other DVDs (regular data DVDs) and audio CDs burn just fine, its only when I'm trying to burn DVD movies that I'm having problems. Or is it some kind of software conflict?

FYI - I am using an Acer 5612 ZWLMi with Windows Vista Home Premium, never had any problems so far with it.

I'd really appreciate any help you can give me!
Thanks!

 

Movies are normally copy protected.
You can not copy copy-protected DVDs with that software.

 

Just get ImgBurn. It's a freeware dvd ripping/imaging program that will allow you to backup your DVDs just fine.

http://download.imgburn.com/SetupImgBurn_2.3.2.0.exe