: Likely shorthand for an "updated" version of the file, which may include fixes for previous encoding errors or improved metadata for media players. Technical Breakdown of Half-SBS
No official 4K 3D disc exists because 4K Blu-ray standard does not support 3D. So-called “2160p 3D” files are either upscaled 1080p 3D or illegal re-encodes. avatarthewayofwater20222160p3dhalfsbs upd