Most mediums for information storage have a set period of time before they begin to lose their readability. A video begins to degrade after only 3 years, while a photograph begins to degrade almost immediately. Newspaper and paper also don't last long when stored or used constantly. While experts aren't in agreement, a CD begins to degrade sometime between 35 and 100 years, but remains realiably usable for much longer. But if you would have 3 diskettes worth of information, you would need to order less than 500 to be cheaper than getting the same information on CD and mass produced.
Convenience is also a factor.
Handling a large number of diskettes is inconvenient, and the chance of error is greaterer than if only one CD was distributed. Below is a chart compairing the cost of recording CD-Rs versus multiple diskettes. If you need more than a few copies, we can make a master CD which allows for production quantities, beginning at 500. Below is a chart compairing the price of production quantity CDs versus the same number of sets of diskettes. A computer equipped with a standard CD-ROM drive is all that is needed.