I have 3 questions for u guys: 1)I have a lot of movies on my hdd which I have compressed using divx from vcds. Can I burn these movies on blank cds & watch them on a vcd player in their compressed state? If yes, how? 2)What's the difference between these movie formats-' *.mpg, *.avi, & divx '? 3)Lastly, what is a usb? What does it look like? How can I check if I have one on my pc?