Your projector is also 4:3, right? If so, you can just project it as-is.
This projector seems to be an office projector, not any kind of cinema projector. You will probably want to test with it before you screen, so you'll get an idea as to what the brightness and color rendition will be like.
A G4 could still be fine to use to play out to the projector, especially if you use an "easy" codec like DV and export the movie to a single, self-contained Quicktime file. A DVD player might be less likely to crash during your screening, though.
Walter Soyka, Principal Keen Live, Inc.
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