MODEL RELEASED. CD-ROM brain power. Abstract image of a man holding to his head a Compact Disk Read- Only Memory (CD-ROM) disk. CD-ROM disks may be used to store visual, text and/or audio information. Here, the power of CD-ROM to store multimedia data like the brain does is portrayed. The disk is made of plastic, pressed with a series of fine depressions that represent digitised signals of coded information capable of being read by laser. The encoded layer is coated with a film of metal to reflect the laser light. CD-ROM disks have a large storage capacity. Multimedia disks combine images, sound and text.