Badut is a home theater PC media browser; an audio/video jukebox. It lets you browse your files and play them, with the focus on good LCD/VFD support, pluggable media (e.g. USB), and infrared remote control. How files are played can be configured. Badut comes with a plugin that plays cdrdao audio CD images directly (audio.toc files).
Smitten differs from traditional media centres in three major ways. It contains no media playback at all, which makes it very small (and suitable for porting to embedded systems) and quick to initialize. It targets a TV display and interface, which means there's less information on any particular screen, and a much simpler control interface consisting of left, right, up, down, and select. No mouse is required. It is also highly skinnable, and cross-platform to most systems. Essentially, it provides an easy-to-use menu system that allows the user to navigate a hierarchy of files, and view them using an (external) tool.
PyMei is a Python media center application. It's designed to run as a full screen application on an HTPC, navigated by a keyboard or an LIRC input device. It plays videos or shows other types of media using external programs like mplayer. With its plugin support and themeability, it's aiming to be a very extensible and customizable media interface.
LongoMatch is a sports video analysis tool for coaches to assist them in making game video analysis. You can tag the most important plays of the game and group them by categories to study each detail of the game strategy. A list with all the tagged plays lets you review them with a simple click, even in slow motion. The timeline gives a quick overview of the game and lets you adjust the lead and lag time of each play frame by frame. LongoMatch has support for playlists, an easy way to create presentations with plays from different games. You can create new videos with your favorite plays using the video editing feature.