If you possess the or a digital ISO file
In the 1990s, "PD" referred to software or freeware. Enthusiasts compiled large libraries of freeware, fan-made programs, and extracted media onto single CD-ROMs to distribute at conventions or via early mail-order catalogs. If this is a fan-made compilation, a "PD ROM" would signify a disc containing community-distributed slideshow programs, image viewers, and extracted game assets from official software like Typing Project E . Emulator and ISO Naming Conventions
Some slideshows don’t end. They just wait for you to look again.