CDex can CD/Ripper music encoder. CDex can extract the data directly (digital) from an Audio CD, which is generally called a CD Ripper or a CDDA utility. The resulting audio file can be a plain WAV file (useful for making compilation audio CDs) or the ripped audio data can be compressed using an audio encoder. Many encoders are supported, to name a few:
Lame MP3 encoder
Internal MP2 encoder
APE lossles audio format
Ogg Vorbis encoder
The Windows MP3 encoder (Fraunhofer MP3 encoder)
NTT VQF encoder
FAAC encoder
Windows WMA8 encoder

Ogg Vorbis is a completely open, patent-free, professional audio encoding and streaming technology with all the benefits of Open Source.

Musepack is an audio compression format with a strong emphasis on high quality. It's not lossless, but it is designed for transparency, so that you won't be able to hear differences between the original wave file and the much smaller MPC file.

It is based on the MPEG-1 Layer-2 / MP2 algorithms, but since 1997 it has rapidly developed and vastly improved and is now at an advanced stage in which it contains heavily optimized and patentless code.

Audacity is free, open source software for recording and editing sounds. It is available for Mac OS X, Microsoft Windows, GNU/Linux, and other operating systems.

CD-DA X-Tractor is a CD ripper for 32-bit Windows platforms. It features intelligent jitter correction, internet CDDB support, on-the-fly MP3 encoding via BladeEnc or Lame_enc, and of course, it's 100% free! It makes use of the AKRip CD-DA Audio Extraction Library -- the source code to the library is included with X-Tractor's source, so there is no need to download it again.

LAME is an educational tool to be used for learning about MP3 encoding. The goal of the LAME project is to use the open source model to improve the psycho acoustics, noise shaping and speed of MP3. LAME is not for everyone - it is distributed as source code only and requires the ability to use a C compiler. However, many popular ripping and encoding programs include the LAME encoding engine.

Mp3Splt-project is a utility to split mp3 and ogg files selecting a begin and an end time position, without decoding. It's very useful to split large mp3/ogg to make smaller files or to split entire albums to obtain original tracks. If you want to split an album, you can select split points and filenames manually or you can get them automatically from CDDB (internet or a local file) or from .cue files. Supports also automatic silence split, that can be used also to adjust cddb/cue splitpoints. You can extract tracks from Mp3Wrap or AlbumWrap files in few seconds. Mp3splt-project is splitted in 3 parts : libmp3splt, mp3splt and mp3splt-gtk.

Mp3Wrap alternative to AlbumWrap. It's a command-line utility that wraps quickly two or more mp3 files in one single large playable mp3, without losing filenames and ID3 informations (and without need of decoding/encoding). Also with the is a free independentpossibility of including other non mp3 files, such as PlayLists, info files, cover images, inside the mp3. This means that you obtain a large mp3 that you can split in any moment just using mp3splt and in few seconds you have all original files again! It's useful because files created with Mp3Wrap are easy to download. Infact who downloads has not to know each single song name and easy to play and even if you don't have mp3splt to split file, you can listen to it anyway.
MP3Wrap the Free AlbumWrap.

Alba Extractor extracts albumwrap files, corrupted albumwrap's (often) or incomplete.
The purpose of the extractor is to extract as much as it can from a wrapped mp3 file.

PeerCast is a simple, free way to listen to radio and watch video on the Internet. It uses P2P technology to let anyone become a broadcaster without the costs of traditional streaming. This means you get to hear and watch stations not normally found on commercially funded sites.