At the time of the CTA-KIT project, the equipment needed to read a CD-ROM included a computer, a CD-ROM player, a display monitor and special software. While the data on the compact disc itself could not be altered, the information could be transferred to computer memory and then manipulated.
The addition of a printer and photocopier enabled the information to be disseminated more widely.
One advantage of the technology was that, unlike paper or microfiche, the lightweight discs were not prone to damage from dust, humidity, fungi or insects. They could also be read a great many times by different users, at no extra cost.