I have to contrast IMDB with CDDB a.k.a. Gracenote. The CDDB guy is popularly held to have screwed over the contributions of thousands of dedicated users when they made their crowd-sourced database proprietary and commercial. Some people I know obsessively catalogued their entire collections, in the spirit of community knowledge, sharing. You have to at least consider that this was Steven Scherf's plan from the beginning, from when it was one of the first, if not the first, popular crowd-sourced sites.<p><a href="http://www.quora.com/How-did-CDDB-become-Gracenote" rel="nofollow">http://www.quora.com/How-did-CDDB-become-Gracenote</a>