Originally Posted by Crownom
how do these 'Hollywood'-level features get compressed to, eg. 1.5-4GB.
...with compression software?
To clarify, you are talking about how the final product can be small enough to fit on a DVD, or portable player... right?
When it's time to export the final cut for a movie, there's all kinds of decisions to be made. Almost all of them revolving around what the viewing destination is going to be. There will be several exported files, all for use in different areas. The digital projection at the cinema will be one sized file, the master for the BluRay will be different than the master for the DVD, the digital download for your Zune will be even smaller.
...if that's what you're talking about.