If you’ve upgraded to the recently-released VLC Player 2.0, you may have encountered a HandBrake problem.
That’s because HandBrake requires VLC in order to read (and then transcode) encrypted DVDs—and most DVDs you can buy these days are indeed encrypted. And the latest version of VLC actually changes which code libraries it uses for DVD decrypting and playback, meaning HandBrake can no longer take advantage of the library it’s long depended upon for that purpose. So if you’ve upgraded to VLC Player 2.0 and attempt to rip a DVD with HandBrake, you’ll encounter an error message suggesting that you don’t have the right version of VLC installed.
Luckily, there’s an easy fix. First, you could download an older copy of VLC and rename your newer version, but that’s annoying. The better solution is to download the missing library directly from VLC. At that link, you can either download an installer package, which places the library where it belongs, or download the libdvdcss.2.dylib file directly. If you take the latter option, you need to move that file to /usr/lib/ on your Mac. The installer does that for you.