I mean, in season 7 parts 1 and 2 are blu-rays with region free encode, but this complete box does not say that. Could it be that they're using different masters now? Or maybe they're the same discs than the other boxes and they are region free as all the other Doctor Who blu-ray editions.
All BBC releases are region free, but encoded at 1080i/50, and I doubt this will be any different. So you depending on where you live you may not be able to play it, unless the player is Region B.
It's unlikely they'll be the same discs from the 'vanilla' releases, as this set features extras not featured in those sets and all previous box sets have new discs. So as it stands right now Series Seven is unlikely to be any different to any previous series box set.
I really hope it works! I have a bluray player bought in america and I have the specials box and the season 5 box in bluray and they work just fine, but in the description of the product it says REGION FREE, but now (and with the spearhead from space release) it doesnt say it, so I'm sort of worried, I'll buy this, and hope it works! Thanks for the reply