Xvid (formerly 'XviD') is a video codec library following the MPEG-4 video coding standard, specifically MPEG-4 Part 2 Advanced Simple Profile (ASP). It uses ASP features such as b-frames, global and quarter pixel motion compensation, lumi masking, trellis quantization, and H.263, MPEG and custom quantization matrices.
Is a container for storing DVD-Video. The basis of the format is MPEG-2 leg, and therefore it may contain multiple streams. It is possible to add a maximum of 9 audiois a streams and 32 kinds of subtitles. Video added solely with MPEG-2 codec.