Although new mobiles and MP3 players support almost all standard audio formats, old devices may not be able to play AAC or M4A formats. Moreover, at times, we get files from different voice recorders ...

fre:ac is a program just over 7MB, and from what we have seen of it so far, it works for the most part. When it comes down to format support, we know users can convert content to MP3, MP4/M4A, WMA, ...