VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Planet Explorer - Interactive global satellite images
foobar2000 - An advanced freeware audio player for the Windows platform.
Tape It - App for songwriting & audio recording.
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
Hum - Songwriting for iPhone