The sampler came with a small booklet indexing the contents of the disc, and a PlayStation catalog disc titled What's Next? 1999.December. Disc 1 contains a Biohazard 3 Last Escape commercial and a Biohazard Gun Survivor prototype video.
The PurePure series was distributed to members of the PlayStation Club. Pu-re Pu-re is a play on words, and can be taken to be short for Preview Play.
3. Disc 1
4. Disc 2
5. Contents booklet
Thanks to Dot50Cal (image 3).