This means the 3D information is squashed into a single standard 1080p or 720p frame. When you play it on a 3D TV or VR headset, the device stretches it back out. You get the 3D effect, but the horizontal resolution is effectively halved.

For a 3D enthusiast, the filename tells you exactly what to expect from this specific version:

Frank Welker (the voice of Scooby-Doo and Megatron) does a solid job as Garfield, maintaining that classic cynical tone even in a superhero setting. The Technical Specs: "half.SBS.z-man.mkv"