Indicates the source of the video. A "rip" means the content was extracted from a physical retail DVD and converted into a digital file.

Avatar.2009.EXTENDED.1080p.BluRay.H264.AAC-RARBG subtitle details and download information provided.

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Advanced Audio Coding. This is a standard audio compression format that generally offers better sound quality than MP3 at similar bitrates.

This is the video compression codec. It is the industry standard for high-quality video that maintains a relatively small file size.