I got a set of DVDs that are Region 2 (UK), and want to copy them over to make them region-free. The disks are 2 layers. I ripped two of the discs with Decrypter in File mode, then opened the files in DVD Shrink and did an analyze and re-encode to ISO, then burned the ISOs to blank DVD-Rs using Decrypter in ISO Write mode. When I attempt to play the discs on my DVD player, it looks like an old TV with the vertical hold knob poorly adjusted. I can see images that should be there, but it's as if the screen is flickering vertically. I put the same DVD into my computer's DVD drive and tried to play it in Media Player - I get normal video but no audio at all. What am I doing wrong?