The disc was given out at E3 in a small plastic case attached to a lanyard, together with a Capcom catalog. It contains Resident Evil 4 and Resident Evil Outbreak File #2 materials.
It looks similar to Capcom Sales CD 2004. The contents are probably identical.
1. Disc in case attached to lanyard
2. Front of catalog
Thanks to eBay member nostradamus_games (image 1).