jRipper is an CD ripper and audio converter developed in Java, that can encode and decode Wav, Flac, MP3, Ogg, AAC(M4A) formats. A CD ripper for you to use.
The program can also do transcoding between various formats. Beware though that every transcoding deteriorate the quality of the audio file.

Requirements:
* Java

The license of this software is Freeware, you can free download and free use this cd ripper software.