I recently self published a VHS/DVD on Microscopic Pond Life, the images being generated through a microscope. I make this available at no charge to teachers. I had a request from a biology teacher in India. I initially resisted sending him either a VHS or DVD because of the ntsc/pal format incompatability thing. However, he claimed that his VHS machine could play any format. When he got the tape, he complained about the "lack of clarity". This is the first complaint like this that I have received on this video. Would a DVD likely to be sharper on machines available in India? Can there be a "clarity" issue with conversion by the hardware from ntsc to pal?