What you describe is not a media issue, but as others mention, a compression issue.
Media-related problems in the video playback are skips, freezes and macro-blocks appearing before/during freezes.
The quality of the video signal has nothing to do with the media.
In my book, 67% is heavy compression with Shrink. I tend to avoid anything under 75%, but that's just my standards.
thread moved to the Copy DVD Movie forum