General Features in Video Editing and Visual Effects Software:

: Likely refers to a specific series or set of images/animations depicting characters in "behind-the-scenes" or post-session scenarios.

Behind-the-Scenes (BTS):

Video footage or stills showing the setup, lighting, and environment of the session. The Significance of a "REPACK"

Enhanced Compression:

Using formats like .RAR or .7Z with high compression ratios to make downloading and archiving more efficient without losing image quality.