Tau Analyzer is a free program, which can help you to distinguish with reasonable accuracy the original studio-based CDs from poor quality fakes, that have been “reconstructed” using a lossy audio source, such as mp3. Using this program you can check the authenticity of your purchased or borrowed music CDs.
Tau Analyzer features an intuitive user interface, allowing users to work directly with audio CDs, and has some additional functions such as spectrum and frequency analyzers, ATIP and ISRC data readers, etc.
The purpose of beets is to get your music collection right once and for all. It catalogs your collection, automatically improving its metadata as it goes using the MusicBrainz database. Then it provides a bouquet of tools for manipulating and accessing your music.
Because beets is designed as a library, it can do almost anything you can imagine for your music collection. Via plugins, beets becomes a panacea:
One of the first Foobar components to consider installing is foo_jesus. This component automatically saves your current configuration and creates backup copies on a regular basis. If you have a problem, or regret, you can easily restore Foobar to an earlier state.
Adds submenu: File>Preferences>Advanced>Autosave & Autobackup
Backs up to: \Users\username\AppData\Roaming\foobar2000\autobackup