I have had the EXACT same problem with an brand new purchased dvd disc an long time ago !
the Disc had NO scratches (clean surface) just like yours, but scanning the disc gave some unrecoverable read errors !! Which indicates that it is an bad pressed / manufactured disc !!
Yet, the disc played just fine too here… except for a few macroblocks here and there, and THAT is what you should pay attention too !!
Macroblocks/distorted blocked images USUALLY means â†’ read errors â† !! In other cases it means bad compression !!
You see, a hardware dvd player may be more forgiving and might jump/skip over the area whit the bad sectors and continue the playback …
Anydvd however will not do that (from my experience) and will stop/fail the rip process eventually !!
Some clone/copy software however will do skip problematic arreas in an attempt to rip the disc from start to END …
But by doing that, not all of the data will be ripped!! and just because of that bad arrea that couldn’t be read/ripped properly. You’ll end whit a bad rip actually !!
that having said, you will be ABLE to watch that DVD rip perfectly on any dvdplayer but you’ll watching the movie with lots of macroblocks / audio skips …
And weird enough the audio/video however will not play out of sync despite of that missing data during the rip process :).