WMA Merger 1.1.6.3 screenshot It can merge/join all kinds of sound files into a wma file. It supports many audio formats such as WMA, MP3, WAV, MPA, MP2, AU, AIF, SND, etc, and video formats MPEG, AVI, VCD, WMV, ASF, DAT, MPE etc. Download WMA Merger 1.1.6.3