: Season 1, Episode 1. The pilot episode is titled "The Gales." Video Quality & Encoding
: Usually, there is a tag at the very end of these strings (which you truncated) representing the "Release Group" or the individuals who encoded and uploaded the file. How to Play This File Willow.S01E01.1080p.10bit.WEBRip.6CH.x265.HEVC-...
: Refers to the color depth. While standard video is 8-bit, 10-bit allows for over a billion colors, significantly reducing "banding" in gradients (like sunsets or shadows). : Season 1, Episode 1
: The source of the file. This indicates the media was captured from a streaming service (web) rather than a physical Blu-ray disc. : Season 1
: 6-channel audio, commonly known as 5.1 Surround Sound (five speakers and one subwoofer).