BR Rip: Ripped from a Blu-ray disc or encoded to imitate Blu-ray quality.
720p: High-definition resolution of 1280×720 pixels.
500mb: Small target file size; implies aggressive compression and likely reduced quality compared with original Blu-ray.
Naming style: Typical of files shared on peer-to-peer networks and torrent sites; may include extra tags (release group, codec, audio language) not shown.