rip. On April 3, 2016, the SD x264 TV Release Standard was updated with a new revision that "aims to update the standards from 2012 to standards suitable for 2016 and the future. Adding clarity and patching loopholes to once again allow for consistent and quality releases, which was the aim of this standard back in 2012." The video container in this revision was changed from mp4 to mkv which frustrated many users. Xvid and x264 sport rips On June 24, 2009, five groups released the first rule set specifically designed for x264 sport releases: TXSRS2K9. The idea was that the x264 encoder would be more suitable than Xvid. Some days after previewing the rule set, a rebuttal was released with concerns about the decisions made and them being in conflict with the high definition TV-X264 rule set. aAF called the rules unofficial nonsense and said that respected groups would not be following them. Only NOsegmenT and KICKOFF have released standard definition x264 sport rips under these rules. The following year, a rule set for Xvid sports releases appeared: TXSRS10. Its aim is to improve the overall quality of sports releases while retaining the compatibility that Xvid provides. It should bring standardization and get rid of restrictions applicable to the ruleless world of TV-XVID. Twelve groups signed the standards, including two of the original five of the x264 rule set. The SD x264 TV Releasing Standards 2012 also cover sport releases, making the previous standards obsolete. High definition video x264 for retail sources The latest High Definition x264 Standard is Revision 4.0 from 2011. This ruleset targets HD DVD and Blu-ray sourced 720p and 1080p movie and TV-show rips. The releases are made available in a Matroska .mkv container, using the x264 encoder. The file size must be a multiple of 1120 MiB. It has become quite normal that non-English spoken movies are tagged with their language tag, even when they contain English subtitles. This is different for Xvid releases. This practice has been accepted by all nukenets, but it was never written down in an addendum to the ruleset. Also the usage of both Dutch and Flemish audio tracks in one release has become a practice. There is a second ruleset from 2008 for x264 releases that has many similarities to the previous one, but it concentrates on BD5 and BD9 releases. The purpose of these releases is that