Capacity is a major reason for using CD-Rom and DVD. CD-Rom discs can carry over 600 megabytes of data at low cost. DVD used in the same way can carry up to 14 times this amount - especially useful for high quality MPEG2 video. DVD also has its own format, intended for video, which runs on the dedicated DVD players now available on the domestic market.

Short runs are produced as CD-R (recordable) discs, but for larger quantities it is more cost effective to press discs from a glass master.

The speed of DVD/CD-Rom drives rated 8x or more is sufficient for the most demanding material, such as video or graphic intensive animation.

Either type of disc can be employed simply as a carrier containing individual data files such as text, graphics, video and audio. Their greatest effectiveness, however, is with multimedia programs. Multi-platform hybrids can be written, and autorun can be incorporated.

The CD-Rom card is a CD the size of a credit card, usually colour printed on the front. The capacity of the card is 16 - 48 megabytes. Typically it is used as an electronic brochure or catalogue. E-mail us for more details.