Aero Quartet has released version 3.1.1 of SimpleMovieX, the company’s Mac OS X movie editor. With a feature set similar to QuickTime Pro, SimpleMovieX extends editing capabilities to other popular video formats AVI, Google Video, MPEG-1, MPEG-2 and MPEG-4. The main advantage of native editing is speed and quality, since no re-encoding is required to save edited movies.