I have a round thing with a hole in the middle - is this a record?

It seems that the film industry and High Street outlets like HMV are bemoaning a fall in the number of people buying DVDs.  Partly I think this is due to the industry not moving with the times, and partly because DVDs are scandalously overpriced.  But I think it's more a matter of not moving with the times.  The days when people amassed libraries of films on DVD have long gone - after all it's not many films you watch more than once.  And with all the movie channels about, most recent films are available to watch on TV, and even more can be downloaded or streamed to your PC.  So why would you go out and buy something which is going to be watched once, and then sit around cluttering up your shelves, when you don't have to.  HMV seem to have accepted that the audio CD has pretty well had it's day, and I think they are going to have to do the same with the DVD.  Time marches on...