[nickr]

whats the diff between 3d iso and
3d sbs

An ISO file is a copy of a DVD or Bluray that should play just like the original disk.

3D videos must contain the left eye view and the right eye view.

A 3D bluray (and therefore a 3D ISO) will have the 3D recorded in a special extension to h.264 AVC called MVC. MVC has a full encode of the left eye view, and the right eye view is essentially encoded as the difference between the two, which is a big space saver as the difference is often pretty small. So Right Eye View = Left Eye View plus DIFF.

You can get the stereo MVC stream in an MKV container by using MakeMKV.

There is no open source MVC decoder at present, which means Kodi does not support it. The one exception is that the raspberry pi SOC will process it in hardware and kodi (15 nightlies) can make use of that. At the moment it is only in an mkv container, but creating that is easy, and they say ISO is not far away.

3D SBS is a BOTH eye views encoded in one frame. Commonly it is Half SBS so each frame has two 960x1080 frames. To kodi it looks like a regular 1920x1080 monoscopic file. The TV/Projector interprets it as 3D. Kodi needs no special code to do this - although it does have special code to display the OSD and subtitles in 3D, so all those things work.