FrostWire is a media manager and fast BitTorrent file sharing client. Its focus lies on searching files and a friendly user interface, automatically scans all Torrent indexers, prefetches torrent files and localizes contained meta data for better searching. It provides a built-in media library and audio/video player, allows to share contents per WiFi; and is also available as Android app.
Nightingale is a cross-platform and extensible media player. It's derived from the Songbird media player (to continue Linux support) with its GUI based on Mozilla XULRunner and GStreamer used for audio playback. Songbird addons can still be used, it supports MP3, AAC, Ogg Vorbis, FLAC, WMA files, and MS or Apple DRM-covered files. It adds MP3/RSS playlists, custom mixes, scanning local media directories, a minimized user interface, Last.fm integration, meta data editing, iTunes import, cus
mrViewer is a compact video player, image/slideshow management tool, and flipbook viewer. It has a non-intuitive but feature-packed GUI and web interface; supports various video and audio formats via ffmpeg, colorization filters, vectorscope, histogram, HDRI, multichannel, OpenEXR support through anaglyphs, network syncing, grease pencils for the flipbook, and multi-part EXR images in addition to standard graphic files.