Viking Screen Recorder is a full-featured screen recording app for Mac OS X. It features a high performance screen capture facility, as well as a built-in video editor and video player that supports all popular video formats.
Just like a Viking -- this screen recorder takes whatever it sees and doesn't tolerate any loss. As such, we have incorporated a "Lossless encoding" mode that uses the FFV1 codec (provided by the FFmpeg project) for 100% lossless, pixel-perfect frames. This codec is used by professionals for video archiving, so you know it's serious business.