The Haunting of Bryan Becket disk quality/info?

[DarknessBDJM]

I've been trying to find any decent info on the stand alone blu-ray of The Haunting of Bryan Becket (known as The Skeptic in other territories) or the combo pack with 2009's Possession, but have yet to find much about the details of either disk. JB Hi-Fi has the 2-pack, while I've seen a more expensive import of the stand alone on the U.S. Amazon.com and E-Bay sites.

If anyone has access to any info, I'd like to know whether the stand alone is a 50 GB disk, the combo is a 2 disk pack or a single disk (and if it's a single disk and the stand alone is 50GB is there a loss in file size/quality), and what the audio track is (/tracks are; the French and German disks are listed as DTS-HD Master Audio 5.1)?

For those that have not seen it, it's really a terrific modern ghost story/mystery in the tradition of The Changeling.