The SMPTE (Society of Motion Picture Television Engineers) has been adopted VC-1 (SMPTE 421M-2006) as a mandatory video format for HD DVD and Blu-ray®. MainConcept VC-1 for the MainConcept Reference base application offers fast encoding and decoding speeds. It supports the Advanced Profile, and all levels. In addition, the full license codec Plug-In features MainConcept's extraordinary quality. The software offers configurable bit rate control, editable GOP structure as well as configurable motion estimation. It offers a simple as well as a professional interface. The latter enables experts to perfect video streams by adjusting a great number of settings and parameters. Under Windows, it also includes the MainConcept VC-1 Decoder, enabling playback of VC-1 files in Windows Media Player and other compatible programs. In contrast to the Pro version Reference VC-1 offers a limited set of features, such as a single instance at the time only, support for just one physical CPU, availability only for ConstQ and VBR rate control modes, and a maximum bitrate up to 20 MBit per second. MainConcept VC-1 can only be used when the MainConcept Reference base application is installed (not included ? free download).