The program lets you convert files in WAV, RealMedia, AIF, AIFF, AIFC, AU, VOC, PVF, PAF, IFF, SVX, APE, FLAC, OGG, VQF, MP1, MP2, MP3, MP4, M4A, M4B, AAC, AMR, WMA, WMV, or ASF formats into WMA, MP3, AAC, M4A, AMR, VQF, OGG, FLAC, APE, or WAV.
You can, of course, do batch conversions, and best of all you don't have to worry about all the input files being in the same format. You just have to choose an output format and the quality settings, and start the process.
FairStars Audio Converter is a good alternative to the huge number of conversion programs available out there.
Only converts the first three minutes of each song.