Great stuff Buyatari. Thanks for sharing with us all the new stuff. It's greatly appreciated. And I agree with ICEknight, we really ought to have a separate topic for Buyatari's contributions seeing there's quite a bit now =)
I've been wanting to give you folks a glimpse of what I get up to for quite some time. It was just a matter of finding the right time. What I've posted here isn't classified or anything like that. All the prerelease stuff below would have been dumped and posted by now. As for the rest of the stuff (promo/not-for-resale/silver discs), these will get scanned and put onto the Retro database at some point (assuming they haven't been yet). They won't get dumped though as they're just the final builds. I'll double check the demo discs but I'm fairly certain they'll be the same as the promo discs.

PS2 Promo (Silver) Discs & Demo (Blue) Discs. PSP Promo Discs. PS3 Promo Discs. As I mentioned in another topic. These are just the final builds with a different disc label. They would have been given out to press reviewers either at the time of their public release date or after their public release date.

SEGA Saturn Silver Discs (Sonic Jam, Sonic R & Sonic 3D Blast). Just like the PS2/PSP/PS3 stuff, these too are just the final builds that were given out to press reviewers.

XBOX360 Promotional Discs. Just like the PS2/PSP/PS3/Sega Saturn stuff, these too are just the final builds that were given out to press reviewers.

SEGA Dreamcast Pre-Production/Trial/Sample/Not-For-Resale/Production Error Discs. Various Sonic Dreamcase discs.

Various Sonic the Hedgehog Prototype/Pre-Production/Trial/Prerelease games.
Mind you, this isn't everything. Eventually more stuff will get added as time progresses.
This post has been edited by Orengefox: 08 May 2013 - 05:42 PM