Understand Resolution

[Travis]

I went to projectorpeople.com, on the Finding Projector page, they give you a list of resolutions to pick from (about 384 of them). It is a real alphabet soup.

Should we avoid getting projectors that aren't 720p or 1080p. So is 1280x720 ok, but 1024x768 isn't? What about 1280x800?

Will resolutions other than 1280x720 and 1920x1080, stretch and squeeze Blu-ray pictures? Or will we wind up with thicker and thinner black bars.

Projector Finder page is here for refence: http://www.projectorpeople.com/proje...tor-finder.asp
Their definition of resolution is very basic, number of dots and lines makes a picture.