Freeware/Audio Utilities

Name	Contains PUP?	Description
Audacity	?	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.
CDex	?	CDex is an application that records audio tracks from CDs and saves them to a disk as regular WAV files or as encoded sound files. This program features an MP3 decoder (MPEG 1/2/3-based) and a new LAME encoder, and has built-in support to generate OGG Vorbis files. CDex is available in English, German, Italian, and Spanish. This latest release includes better support of USB drives when using Native NT SCSI library option and various bug fixes.
Exact Audio Copy	?	There are a few things to consider when you plan to convert your audio CD collection to a digital format. There's error correction for one thing, especially if your CDs have been around for long and have marks and scratches on the surface. If you shopped around and tried a few CD rippers, you know by now that they all come up with different results: some have lousy jitter control, others blatantly refuse to rip a damaged track, others yet copy all the mistakes to the MP3 file, making it useless. Try Exact Audio Copy and see the difference.
Imgburn	Yes	ImgBurn carries on from where DVD Decrypter left off! (Well, for the burning part anyway!) ImgBurn can write most types of CD / DVD images and it supports all the latest writers (including booktype / bitsetting on many of the major ones - i.e. BenQ, LiteOn, NEC, Plextor, Sony). You can even use ImgBurn to erase / format your rewritable media! ImgBurn will try its very best to burn your DVD-Video double layer images using the layer break you've specified in the IFO files, but it can also calculate the best place for you, to save you the trouble.
mpTrim	?	mpTrim is a simple and easy to use MP3 editor. Use it to improve your MP3 collection.
Tau Analyzer	?	Next generation of Aucdtect, the audio CD authenticity detector. (Aucdtect determines the authenticity of musical CDs, calculating their likelihood as originating from a given source-whether it's the product of an original studio recording, or a reconstruction from a lossy data source, such as an MP3.) Whereas Aucdtect uses WAV file data, from a command line, Tau Analyzer features an intuitive user interface, allowing users to work directly with audio CDs, adding functions such as Spectrum and Frequency analyzers, ATIP and ISRC data readers, etc.