The Cardboard sleeve edition is a GAME exclusive in the UK, not sure if it was released anywhere else.
http://www.game.co.uk/search.aspx?s=...or%27s+Edition
It contains the following:
Dragon Age Collectors Edition features:
- Bonus DVD with a 'Making of' documentary, Soundtrack, Trailers, Wallpaper, Concept Art Video and Strategy tips
- 3 pieces of exclusive in-game content - Bergens Honour, Grimoire of the Frozen Wastes and Final Reason.
- Unlockable ME2 in-game item: Original purchasers of DAO will receive the Blood Dragon Armour which will be usable in both DAO and ME2
- The Stone Prisoner unlockable bonus quest and unlockable character, Shale
The pre-order bonus was DLC code: "The Memory Band and Promise Ring"
RRP : £54.99
Release date: 20 - Nov - 2009
In terms of history: Alot of buyers who pre-ordered the game didn't get the DLC code until 24 hours after the game launch.