Kodak announced the concept of the Photo CD System to the world in late September of 1990. It was originally introduced as a means whereby the consumer could store his or her pictures on a convenient, compact disc and view them easily on any television set. As initially conceived, a PCD file -- or Image Pac -- could be created from any 35mm color or black and white negative or color slide. After conventional processing, the film is scanned and digitally written to a Photo CD disc. Each disc holds approximately 100 images. A thermal index print with a file access number for each image is intended to simplify image selection for viewing on a television set with a Photo CD player or on the monitor of a computer with a CD-ROM X drive.