YoutubeJmp3 is a youtube-video downloader & converter front end written in Java. It uses youtube-dl binaries and ffmpeg.exe for conversion. You can download any music-video on youtube as an mp3 to your collection with a few clicks.
MediaCentre is an media centre server application for use on a home computer so you'll see your movies, play music and view / edit your pics when you're away from your computer, using a browser. Has been tested on MacOSX, Ubuntu Linux, and WindowsXP
dplayer (short for "directory player") is a simple music file player written in Java. Instead of using a sophisticated playlist management or "my music" repository, it offers a file system browser to let you choose directories containing music files.
JReceiver is a servlet-based audio server which features tightly
integrated metadata indexing capabilities, browser-based management,
an XML-RPC interface and support for network-based MP3 players like the
Rio Receiver from Sonic Blue.