audio convert is a script that converts between WAV, Ogg, MP3, MPC, FLAC, APE, AAC, and WMA files. It has an easy-to-use interface that makes it possible to fill in the tags for a few formats, copy the tags from input files into the new files, and choose the quality of compression. The script was initially designed for the Nautilus file browser and can be easily installed into Nautilus by using the installer provided with the script. You can then right-click on files and choose "audio-convert" from the "scripts" menu. The script is also known to work on rox or directly from a shell.
Qubit (Qmail Ultimate Backend Integration Tool) is a fully Web-based qmail server configuration and administration suite. It is based on the qmailrules qmail server installation style. It has the same features as other similar tools (like vqadmin and qmailadmin), and it also gives you full control to administer your server with all sorts of features and applications.