I think California is a rather nice place to live.
There are some movies that are in the public domain and therefore can be shared without fear. Some independent film makers have begun a "see now, pay later" plan; if you like their movie, and then send them some money, they'll make more movies. These producers encourage file-sharing. The movie Blank (that's the actual name!) is a good example of this.
Comcast sent me the letter because I had seeded a CAM (camera) copy of a very recent movie that was popular among 16-24 year-olds. I now avoid movies that are currently playing in theaters. Also, many still-playing have not yet been put on DVD, so CAM copies are more likely, and CAMs are usually not very good and they are more likely to raise trouble with your ISP (under pressure from MPAA).
Gavin Newsome for Lt. Gov.! |