Why many consumers don’t buy movies online

Lack of file compatibility: A movie bought for one device won’t work on others.

Pay TV headaches: Films disappear from online stores like iTunes whenever they are airing on pay cable networks like HBO.

Downloading is too complicated: It no longer takes a computer science degree to download a movie, but people still don’t know how to do it.

Price: When music moved to the Web, the prices of albums fell. Yet studios charge the same for a movie online as for a DVD.