Of course the end of it all will be downloading as the primary form of "rental",
with whatever format that "survives" (if you want to call it that) the bastion of movie collectors. People are already being trained to download media with ipods, etc,
and they are already downloading movies with gameboxes and cable and the net.
I have always said that this is a THREE player war, with the third "player"
downloading, and that downloading will win.
But for a format that movie collectors will want to archive, they will go for quality
like they did for laser, and hence blu ray will "win".
But only as a format for collectors,
Downloading will win as the "format" of choice for rental, its already my format
of choice