The technical work on the first amendment of the H.264/MPEG4-AVC video coding standard has recently been completed. In these so-called Fidelity Range Extensions (FRExt) a set of new coding tools is specified which is primarily targeted at providing significant improvements in coding efficiency for higher-fidelity video material. This paper presents an overview of the corresponding methods, briefly discusses some important aspects regarding profiles and applications, and finally provides experimental results for a performance comparison with existing coding technology. Keywords?H.264, MPEG4, Advanced Video Coding (AVC), Fidelity Range Extensions (FRExt), video coding, standards, JVT.