The cardsleeve edition of the demo came with subscriber issues of Official Xbox Magazine September 2003. It contains a video preview of Dino Crisis 3.
Retailer issues of the magazine came with demos in thin DVD cases. The discs are identical.
3. Disc (on top of sleeve)
4. Front of magazine
5. Back of magazine with cover sheet and demo
Thanks to eBay members wcd (images 1-3) and brecmilc-0 (images 4-5).