This refers to the "release group" or individual who originally compressed and uploaded the file. In the era of peer-to-peer (P2P) sharing sites and forums, these tags were used to identify the source and quality of the file.
: The term "rip by piratex" implies that the video was obtained through methods that might circumvent copyright protections. This can raise ethical and legal issues regarding content distribution. This refers to the "release group" or individual