Definitions for "Xvid "
Xvid is an open source MPEG-4 video codec, implementing MPEG-4 Simple Profile, Advanced Simple Profile, and Advanced Video Coding standards.
XviD is an open source MPEG-4 video codec, written in C with assembler optmizations for quality and speed .
XviD is an ISO MPEG-4 compliant video codec. It's not a product but an open source project which is developed and maintained by people around the world.