The Optoma HD37 has a maximum resolution of 1080p (1920x1080). That's over two times the resolution of a XGA (1024x768) multimedia projector, which is the most common resolution.
This projector's resolution (1080p (1920x1080)) is in fact the best resolution amongst all data projectors of a similar type and age to this data projector.
A SVGA (800x600) projector native resolution is the worst resolution across similar types of projector.
What does "projector native resolution" mean?