It is a media read error, so if it is not affecting every DVD disk you have: then you know the problem is for specific media, formats or media (brand) types..https://forum.handbrake.fr/viewtopic.ph ... da7e149200http://www.linuxforums.org/forum/red-ha ... ssues.html
--your specific issue: other user experiences
Another possibility (foreign DVDs), unicoded paths to files..
If there is a command line option to skip unreadable blocks, try that
--I haven't looked into the vlc options, so I can't say for sure..