djymz - only the files in that subfolder will be accessible by others

steve - that's a complicated question!

You probably don't want to simply rip a DVD into your shared folder (ripping and decrypting is another topic - are you familiar with this?)

The most common video file types that people share are .mpg and .avi because they are compressed enough as to be relatively quick to download

If you want to share your DVDs, you should probably convert to one of these formats...check out this website (especially the guides): http://afterdawn.com

Good Luck

P.S. Converting video formats can be time consuming and frustrating until you learn how to do it...don't expect to be a pro right away!