Prisoner of Azkaban: Wizard's Collection

Information has been released about the content on the Chamber of Secrets' discs, part of the Wizard's Collection.

Disc 1 - Theatrical version (Blu-ray)
Disc 2 - Theatrical version (DVD)
Disc 3 - Special Features (DVD)
Disc 4 - Creating the World of Harry Potter Part 3: Creatures (Blu-ray)

Creating the World of Harry Potter Part 3 'Creatures':

Soar on the back of Buckbeak. Battle a Hungarian Horntail. Trace Voldemort’s terrifying transformation from grotesque infant-like creature to Dark Lord. Fascinating footage lets you experience the Harry Potter world of creatures through new eyes with this revealing look at a new group of wizards: the artists who create the monsters and marvels. Roam the Creature Shop, where actors turn into beasts and sketches turn into animatronic wonders. Join Daniel Radcliffe, Rupert Grint and Emma Watson as they share stories about acting opposite everything from tiny computer-generated pixies to a four-ton mechanical spider (guess which young star is really afraid of spiders). New discoveries and new revelations all make your journeys into Harry’s world even more thrilling!

The more information I read on this the more angry I become ... why on earth are WB mixing DVD with Blu-ray?! Each set should only contain DVD or Blu-ray discs ... mixing the content across two types of discs is RUBBISH - and not to mention no extended edition for this, pathetic.