I have found the best method for me to rip DVD to DVD-R (before I had problems with freezing, choppy playback, unrecoverable errors on DVD-R. I was using Prassi Promo for recording to Princo,Ritek,Sony, Optodisc). My recorder is Toshiba R5002. Now I using DVD2DVD-R or Ifoedit guide. When I have ready Audio_ts and Video_ts folders with movie ready for burning, I make a image using ImageTool and record image using DVD Decrypter in ISO Mode- Write 1X. Now all my DVD-R are O.K. No freezing, no skipping, no errors. maybe can help somebody with same problems.