The 3 disks are BD25s. The video stream from Harmy’s MKVs was converted to a 720p bluray compliant format that Adobe Encore could understand, but bitrate for the film was kept as high as possible.
The special features and commentaries were chosen by me. They are lower-res, to fit on the disks, but still very watchable. For more official commentaries, you can listen via the MKV release.
All commentary tracks were recut to fit the theatrical editions.