I know, I know that the main purpose is to get them buy an upgrade - I just don't think that many people will upgrade if they don't trust what's inside.
Here the typical situation: A horny guy goes to the site and sees the screenshots of the movie. He wants it but he thinks "what if there is not the movie inside" - so he is downloading the first part to try - and only after that he wants more - but this time right away, not to wait for 30 minutes or so. So then he upgrades to the premium account. But without knowing that the actual movie is inside - why should he "waste" $5?
Do you get what I mean? Nobody will upgrade to any premium plan if he is not sure what's inside - he is not willing to pay the first time. Or would you buy a whore without seeing her? She could be upgly, fat or damn old.
So my question is still - how big do you make each file? Such a hard question? Please share ...