two versions on one disc

[Bobby Henderson]

I believe the poster wants a version of the film pre-cropped to 16:9 available on the same disc. Although, I'm not you could get both on the same disc without compression.

1080p video on Blu-ray Disc is already compressed, and often the video compression is fairly severe at that.

Uncompressed HD-SDI video streams in 1080p run at roughly 1.5 Billion bits per second. On BD, that video bit rate has to be squeezed to under 40 million bits per second.

If the movie has to fit on a single layer BD-25 disc then it is going to be compressed quite a bit worse and yield even more inferior video quality. And that's what we would be stuck with if we had to fit two different framing versions of one movie on the same disc. It's a terrible compromise that should not be made on a high end video presentation format.