a little help here

[dani82]

can someone please tell me what interlaced, progressive, and letterboxed mean?

[pacohaas]

read these:

http://doom9.org/newbie_section.htm
http://doom9.org/synch.htm

tehre's more on his guides and on nicky page's guides at digital-digest.com, time for you to do some of your own research.