I am using DVD Shrink and Nero 6, works fine if I rip and burn region 4, where I am. If I try a region 2 or 3 disc to region free, I get clear horizontal lines across the screen. I am using a Sony DRU510a drive. My DVD player is a Samsung unit which I cannot make region free, no matter how hard I try, so I need to convert or region free some discs.Also if I play the discs back in a computer drive, I get black horizontal flicks across the screen, so it's not the TV or DVD player. Has anyone seen this before? Thanks, Patto.