The disc was included with the October 2004 issue of the Official Xbox Magazine, and contains a playable Silent Hill 4 The Room demo and gallery.
There were two variants. The subscription variant shown on this page came in a cardsleeve. The retailer variant came in a thin DVD case. The discs are identical.
1. Front
2. Back
3. Disc
Thanks to eBay members rubbkimbe (image 1) and dora20162804-56 (image 2), and Tse man (image 3).