MediaJoin is a tool that lets you easily combine all popular audio and video files into a single merged audio or video file. It supports numerous formats including MP3, WMA, WAV, OGG, AVI, WMV, MPEG-1 and MPEG-2. It also gives you the option to provide tag information for combined output files. You can set frequency, channels, WMA profile for audio files and AVI audio and video codec, frame rate, size, etc. It supports more formats than any other common software in market. Probably, it is the only complete solution for joining audio and video files. You get so much in a single application which is a fun to use.