The evolution of several Pokémon, including Brock's Zubat into Golbat.
Indicates the source of the video was a retail DVD, which generally offers better quality than a television broadcast recording (TVRip).
The tag for the release group or individual (encoder) who ripped and distributed this specific version of the file. Summary of Season 4
A popular video codec used for compressing video files while maintaining relatively high visual quality. It was a standard for "Scene" releases for many years.