Cataloging (or cataloguing) of all types of digital music files can be done easily with Song Director database software. These music files can be in many different formats such as (MP3, M4a/AAC, iTunes, WMA, WAV, OGG and FLAC files)
There is no better way to organize different music files than with Song Director Software. And best of all it is free to download and use. Song Director is also a music player and can create advanced playlists.
Below is a good article by Myongsu Park comparing music formats being used today:
Comparing Music File Formats
A lot of people surf the Internet to find music. Many sites the Net surfers visit contain links to music or other listening material samples.
Unfortunately it is highly likely that the unwary surfers click a music file to find a very large music file downloading and the computer frozen due to the gigantic
music file size. There exist a variety of sound file formats among which an mp3 enjoys its high
popularity. MP3 files are ubiquitous on the Net and it is no exaggeration to say that the MP3 is now a household name in the world. People, however, enjoy an
mp3 music file without knowing what it is and its strengths and weaknesses in comparison other popular music file formats.
In this regard, I would like to provide background information and guidance about the most commonly used sound formats for music clips available on the Net and
to offer usability pointers for an improved Web audiophile experience.