Incomplete burning

Brand new to this site and brand new to the digital age. My problem is burning/copying DVD movies. This first step I do is ‘rip’ using a trial version of ripping software. Then I use Power2Go to burn on to a DVD-RW. Everything appears to work ok in that I get no error messages and things say they are ‘Finished’. But when I view the movie on my laptop or home dvd player it’s always missing the last part of the movie. Yet it shows the previews that trail the end of the movie. Is it because it’s a trial version of Ripping software or could I be doing something wrong.

Burn with ImgBurn and use Taiyo Yuden or Verbatim for your media.

Now, I think the problem lies with the ripping software? What program are you using? Have you tried using the free DVDFab Decrypter or RipIt4Me?