Album Art Downloader - The Album Art Downloader is a program designed to make life easier for anyone who wishes to find...
Emit - Emit can stream from a Windows/Mac/Linux machine to an android/iOS device.
Creevity MP3 Cover Downloader - Easily find and add covers to your mp3 files.
MX Player - Powerful video player with advanced hardware acceleration and subtitle support.
Cover Fetcher - Cover Fetcher is a simple program that downloads album artwork from last.fm.
Vinyl Music Player - A fork of Phonograph Music Player that "makes all Pro features free, as they used to be".