Disc-cover provides an easy way to produce covers for audio CDs. It scans audio CDs and uses information from the CDDB or CDINDEX database to build a back and front cover for the CD. Output is in Latex, Dvi, PDF, Postscript, HTML, plain ASCII, or any other format suited for cdlabelgen.
mp3riot (formerly known as f2html.pl) is a command line utility that searches recursively through directories, builds a file list (with additional file information), and generates HTML files, playlists, etc. The output can be controlled, links can be corrected, and more. The script is mainly desigend to create Web pages, playlists, and databases for MP3 and Ogg files, but can also used for other purposes.
JNapster is a Napster client implemented in Java. It allows you to download MP3s over the Internet. It provides a GUI similar to that of the Napster Windows client and has some handy features the original doesn't have: It gets server lists directly from napigator.com and logs you into as many Napster servers as you want, which you can query in parallel.