Breaking down "20121080pblurayx264data publ": "2012" is the year, "1080p" refers to the resolution, "Bluray" indicates the source material, "x264" is the video codec used for encoding, and "data publ" might be a typo or part of the encoding software/data used. The user might be looking for a detailed description of this specific video file, perhaps for a database entry, a torrent description, or a tech blog.