The box set contains the Player's Choice editions of Resident Evil and Resident Evil 0. It also came with a response form to recieve Resident Evil 4 Preview Disc, limited to the 10,000 first customers. A later edition of the box set had slightly different design, and you could no longer get the demo.
1. Front of box
2. Back of box
Thanks to MobyGames (images 1-2).