http://koepi.roeder.goe.net/xvid.shtml
XviD 1.0 RC1, codenamed Niltze, has been released. It contains a cleaned up VfW GUI, fixes color space assignment problems, the weighed zones should have been fixed, the VfW status window has been overhauled, fast first pass now disables QPel during the first pass, the codec checks for statsfile existence before starting the 2nd pass, the installer deletes old XviD configurations and some issues in the postprocessing department have also been fixed.