Windows/Mac/Linux (All platforms): The latest beta of Audacity, the open-source, all-purpose audio editor, integrates the FFMpeg tool to allow working with Windows Media, MPEG-4 and Dolby Digital (i.e. M4A and AC3) files, along with a lot of other new features for its fans. Those with FFMpeg already installed only have to locate their avformat-52.dll file in the Import/Export preferences setting to enable the (beta-level) support for non-standard files. Those without will get direct downloa