It enables users to join multiple MP3 files into a single bigger file.
Armjisoft Digital Rights Management Systems
With MP3 OwnerGuard you can Create, Distribute and Sell your valuable Audios in MP3 format while Own....
Audio Mixer Studio
Easy MP3 Audio Mixer is a simple program for mixing audio streams.
Great audio player with support for several formats and excellent sound quality.
HTML Guardian is a great tool for websites protection.
MP3gUARD protectS MP3 files from copyright infringement.
TFM Group 
FREE RealTime MP3 Mixing Machine with Pitch control,CrossFade control and more.
Powerful polyphonic MP3 or Wave to MIDI converter with a Realtime Module.
Detects audio note in realtime and transcribes MP3 music while playing.
Cut MP3, join MP3, split MP3, edit MP3, mix MP3, rip CDs, apply audio effects.
The Right Click MP3 Player! A quick, suitable, mp3 player 'add-on' for Windows. MP3 Viewer plays MP3....
ashampoo GmbH & Co. KG
Enhances the security of your computer by encrypting sensitive files.
Easy CRYPT- und ZIP-Solution for signing, encrypting and compressing of files.
AxCrypt can help protect your privacy by encrypting sensitive data.
iSafeguard is made for encrypting your emails and files of any types.
Steganos Safe 2008 is a good way of encrypting private data.