: Refers to Dolby Digital audio, a standard format for surround sound.

: The modern video compression standard used to encode the file. It is more efficient than the older x264, allowing for a smaller file size without sacrificing visual quality.

: Short for Blu-ray , identifying the high-definition physical disc used as the original source for this digital copy.

: The video resolution (1920 x 1080 pixels), providing "Full HD" clarity.

The name is packed with metadata that defines the file's quality and contents: : George Miller's legendary sequel.