HandBrake is an open-source, GPL-licensed, multiplatform, multithreaded video transcoder. It can convert videos of nearly any format, including most common multimedia files that libavformat and libavcodec support.
Possible output formats include:
For additional information, please refer to: HandBrake: LSU Overview.
MuseScore is a music scorewriter for Linux, Microsoft Windows and Mac. MuseScore is a WYSIWYG editor, complete with support for score playback and import/export of MusicXML and standard MIDI files. Percussion notation is supported, as is direct printing from the program. The program has a clean user interface, with fast note editing input similar to the step-time note entry found in the popular commercial Scorewriting software packages, Finale and Sibelius.
For additional information, please refer to: MuseScore: LSU Overview.
VLC (initially VideoLAN Client) is a highly portable multimedia player for various audio and video formats (MPEG-1, MPEG-2, MPEG-4, DivX, mp3, ogg, ...) as well as DVDs, VCDs, and various streaming protocols. It can also be used as a server to stream in unicast or multicast in IPv4 or IPv6 on a high-bandwidth network.
For additional information, please refer to: VLC Media Player: LSU Overview
Linux Users: VLC Media Player can be downloaded on the VLC Media Player download page on the provider's website.