it would be good if "tong_mostwanted," specified what help he needs. I know you can get free music from (copy and paste in url) "
Seekasong.com - Mp3 Search & Free Mp3 Downloads ."
You can go to google video for free videos, search it, and you click next to the video, download and it downloads in a .mp4 format.
You tube videos can be downloaded if you do a google search (do this in another tab while you have you tube open at the video you want to download) search for "download youtube videos" and click on like the first link, you copy and paste the url of the youtube video, paste it in the box, and download, but you need to change its name from get_video to what you wanna call it, or you cant download more, as the filename already exists
Alternatively, I would just use Limewire, its simple, but game soundtracks i dont know, this site has lots, but do a google search on "game soundtracks to download."