On this blog you can see what discs are supported by DVDFab Cinavia Removal. Those movies highlighted in green under "Reference Lists" are supported. Normally, after DVDFab loads the original disc, you can check the dropdown selection of the audio stream:
1. if a stream is Cinavia affected, it will show the Cinavia logo in front of the audio;
2. if the Removal is supported in this audio, the logo will have a "\" mark superimposed over it;
3. if the Cinavia logo is grey without "\", then this audio stream is not supported by Removal yet;
4. if none of the audio streams is marked with the Cinavia logo, the movie you own may be in a different version from the one we supported, or it is not an original disc.