I need to reduce the file size of some of my HD videos, since I am running out of storage space. A lower resolution is acceptable, and other methods are welcome. I would prefer a GUI solution, as I am not familiar with the command line. How can I do this?
A popular option for video conversion, including recompression to a smaller size, is the open-source HandBrake. HandBrake takes full advantage of multi-core processors and can handle MP4, H.264, and Theora formats. You can also use the VLC media player to convert videos to different formats or resolutions.
Miro Video Converter is an easy-to-use GUI application to convert videos to different formats. You can also choose a device (iPhone, Android phones, etc) and select a compatible video format.
You can get it from http://www.mirovideoconverter.com and the Mac App Store.
It is available for Windows:
and Mac OS X: