XviD is an open source video codec just like DivX.
Most new movies and videos are being encoded with XviD.
What´s New in version 1.3.1:
xvidcore library
Enabled noexec stack for both elf and elf32 obj format for better NASM compatibility
Fixed edging bug for non-mod16 image dimensions
Generated configure scripts with more up-to-date autconf version
Fixed error with pthread check in configure.in script
DShow/MFT frontend:
Disabled rgb_flip for MFT decoder
Modified icon/gui graphics for better visibility
Changed VC8 project files to use static LIBCMT runtime
FreewareFiles tested XviD Codec 1.3.1 on 2011-03-25 using leading
antivirus scanners and found it 100% Clean. It does not contain any form
of malware, spyware, viruses, trojans, etc. We will re-test each updated
version and remove the award as well as the program if found infected.