New special feature I thought of that should be used on every Blu-ray.

[Canada]

In the list of special features they should have a list of all the songs used in that movie, you should be able to click on that particular song and it should take you to the scene in the movie where it was used. I can't count how many a song from a movie has been stuck in my head but I have no idea what it's called that would solve the problem quickly and easily. I'm sure they can do it with Blu-ray technology for heaven sakes they should be able to do it with DVD technology.