This is semi-common sense but not everyone knows about it so here ;P
Find a game or a movie name that you like/need and download BitTorrent/Azureus (Azureus is better i think..its faster).
You can get those just by searching through google its easy :P.
Then again you need to go to Google and search for <Game/Movie name> torrent.
Might take a while but you will get there..
When you get a game you usually need Daemon tools(obtainable from searching)
Once you get daemon tools you should look in the folder you downloaded it should have something like CD1 CD2 CD 3 CD 4.
Right Click on the daemon tools icon (Red lightning) and choose mount drives and then browse it all the way to CD1 and the rest you can figure it out :P
Also for movies it should be straight Windows Media Playable
Do this at your own risk :P I live in a place where people dont care about copy right >_>
If you have any questions...DONT ASK ME, ask an expert.