This is the "Release Group" tag. In the world of digital distribution, groups like Z0N3 or mSD are the teams that encoded and uploaded the file.
This is a pivotal episode in the series where the Source of All Evil breaks an ancient pact to tap into "The Hollow," a force that consumes all magic. It marks a major confrontation for the Charmed Ones (Piper, Phoebe, and Paige). Torrent Details For "Charmed.S04E13.480p.x264-Z...
The video compression standard (H.264). This is the "industry standard" for high-quality video at relatively low bitrates. This is the "Release Group" tag