RMTEAM can take a 30GB BluRay rip and compress it into a 2-4 GB MKV file that still looks "good enough" on a laptop or tablet screen. This makes their releases ideal for users with slow internet, limited hard drive space, or large media collections.

To understand why RMTEAM uses x265, compare it to its predecessor, :

(Reliable Media Team) stands as a pivotal name in the history of digital media distribution, specifically known for popularizing high-efficiency video encoding during the transitional years of the mid-2010s. While today the x265 codec is a standard for 4K and space-saving 1080p content, RMTeam was one of the early "pioneer" groups that specialized in "mini" encodes—balancing visual quality with drastically reduced file sizes. The Evolution of x265 and RMTeam

While rmteam x265 files sound perfect, compression always comes with a cost. It is important to understand the trade-offs before replacing your entire library. 1. High Playback CPU Overhead