Hi Paulo, I think the difference is the in the number of line per screen. You might beinterested in International Call To Creative Action, creative competition. The theme is to explore your post 9?11 experience. All the winning and finalists entries will be published September 2003, on the 9?11 International Call to Creative Action, a digital storytelling interactive DVD, to be presented to the United Nations Library, and Canadian Parliamentary Library and the American Library of Congress. Categories: Writer, Visual Artist, Photography, Multimedia, and a separate family or school entry. Detailed information is on the web site or email info@netcomediainteractive.com. Entry fee: fifteen ($15) US money order with one (1) entry or twenty five dollars ($25) US money order for three (3) entries.1st Prize: $250, 2nd Prize: $150, all in US currency. Winners will receive a copy of the published DVD. Deadline post marked May 1, 2003 c/o netcoMedia Interactive 1027 Davie Street, Suite 532 Vancouver, BC, Canada V6E 4L2 http://www.netcomediainteractive.com Info@netcomediainteractive.com Welcome back. >> My professional background is electronics engineering. I¹m a sales engineer working with professional video equipment for 3 years now (I don¹t know if this matters ? << I am a professional videographer when I am not a starving photographer. Can you explain PAL and how it differs from NTSC? I have always been curious. It was actually explained to me about 10 years ago, but I work in America and never met any PAL users. Now I can't remember anything about that format. Take care, Gregory david Stempel FIREFRAMEi m a g i n g