Here's what is known about such "EVA Slideshow" discs:

The discs came packed with sound files in AIFF , SND , and WAV formats, sampled at 22kHz and 44kHz. These included dialog and sound effects from the show, organized by character. For fans in 1996, having the original Japanese voice actors' lines from the series on their PC was a major selling point.

While other slideshows could be simple or even pornographic, the content of "Slideshow E" has been described as explicit and featuring mature illustrations. It's a raw, unvarnished product of its time, reflecting an early internet culture where fans created and shared content in a legal gray area, far from official channels.

According to archived internet logs and user reports, files labeled under this specific name from the SNES emulation era frequently contained highly explicit, adult-oriented image slideshows of the anime's characters rather than actual interactive gameplay.