Surf the Internet securely on an open-source web browser.

the most popular open-source web browser ...you synchronize your open tabs, browsing 

Plays most multimedia files as well as DVDs, Audio CDs, VCDs, etc.

is a free and open source cross-platform 

Light-weight media player with support for most formats and all DVDs and BDs.

MPC-HC is open source ...dark theme Added video preview on seekbar...support for MPC Video Renderer Added A-B Repeat 

Free and open source software for video recording and live streaming.

Free and open source software for video recording...up of multiple sources including window captures...options. Add new Sources, duplicate existing 

Open-source 3D modelling software to make and edit models.

of sense. It opens unsurpassed workflow 

Split, decode, and play back a wide variety of multimedia formats.

media splitter, and a video decoder. By working...mention that it's open source 

Xvid is an open-source research project focusing on video compression.

an open-source research project focusing on video compression...license. The Xvid video codec implements MPEG...required bandwidth of video 

A free media player for Windows with built-in codecs.

play virtually all video...worry, when you open that movie again...almost all known video...to play Youtube videos 

WinCDEmu is an open-source CD/DVD/BD drive emulator.

It is an open-source...least, it is open-source, which...and check its source code 

XBMC Media Center is an open source media player an entertainment hub.

Center is an open source media player...and view most videos, music, podcasts