There's something both wonderful and slightly terrifying about decades of film history being preserved because one person at an auction happened to notice a folder full of old CD-ROMs
If you look through the isos, it's actually a pretty slight sliver of (presumably) what exists. Most features just have a couple promo reels of the final shots and a handful of WIP stills, not much that shows their process. Also seems to only cover later projects that were mostly cg work. Hopefully someone at the studio grabbed the more substantial stuff?