finally some 256-color BMP wallpapers for my windows 95 machine

they also come in 1024x768 and full color but who cares about that.
640x480 8-bit color, forever

OK so it's hard to research this because you just get hentai sites but apparently there were two erotic visual novels called SeiGra 97 Vol. 3: Shining Shy and Seibura 97 Vol 4 -Cherry Breeze-, both by the group Lyceen.

And this CD-ROM is some extracted pictures and wallpapers from them.
With approval, I... think?

So it's got 8 wallpapers from each of the two games, and then it has directories for each of the games, containing files in these folders.
other than AIFF (which is AIFF files), they're all PIC files.
which I think is the native image format of the game?

so instead of pre-converting the PIC files to common formats like GIF and BMP and JPEG, they provided a viewer tool for them

time to get out my windows 3.1 VM, clearly