This is the tag of the specific release group—in this case, "Team Rx" or "Rx"—that encoded and distributed the file. Groups competed to release the highest quality rips the fastest.

Short for "DVD Screener." This indicates the source material. Screeners were promotional DVDs sent to film industry professionals, critics, and awards voters (such as Academy Award judges) before the official home video release. They often featured scrolling ticker warnings or black-and-white segments to discourage copying.