Mp3 Audio Converter is one of the easiest audio converters we have tested, maybe because it shows all functions on screen with no hidden tabs, you only have to choose the songs you want to convert and then choose the format and the quality (If you want you can choose the bitrate and the sample rate too).
Furthermore, the conversion is really fast (a 5 minutes long song is converted within 8 seconds) and the results are very good, the sound quality remains the same and even sometimes it becomes better.
Mp3 Audio Converter supports to convert one format to another:
MP3 to WMA/WAV
WMA to MP3/WAV
WAV to MP3/WMA
M4A, MP4, AAC to MP3/WMA/WAV
MPA, ASF, OGG to MP3/WMA/WAV
AIFF, FLAC, APE, MAC, MPC, MP+, MPP to MP3/WMA/WAV
MP3, MPA, WAV, OGG, WMA, ASF, M4A, MP4, AAC, AIFF, FLAC, APE, MAC, MPC, MP+, MPP to OGG/VOX