WMA Merger can merge 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. If extra codecs are installed, WMA Merger can join DIVX, OGG, AC3, MKV, OGM, MKA, SVCD etc.
Append MP3 files to one another.
Vertically append many PDF files.
Append PDF files to one another.
Combine multiple text files into one.
Combine data in many OpenOffice Calc files.