: Stands for "Blu-ray Rip," meaning the source of the video was a retail Blu-ray disc. x264 : The video compression codec used to encode the file.
The filename describes a digital video file of the 2007 movie Good Luck Chuck .
: These are "release tags" identifying the groups or individuals who encoded and uploaded the file to the internet. YIFY was a well-known group famous for small file sizes.