When paper files are converted to an electronic format on disk, the physical space is freed up for other business or personnel functions. Sometimes, this can lead to a business or organization realizing that a planned building or expansion may not be necessary. Storage units rented to house years of accumulated documents are no longer needed.
The typical calculation is that one CD disk can hold the contents of two 4-foot high files cabinets, or three lateral files, or 2.5 bankers boxes, or 12 thousand high quality, color images. One DVD can hold six times that amount, or the contents of twelve vertical files, 24 lateral files, or 96,000 high quality, color images. The amount of data stored on a hard drive is limited only to the capacity of the computer server storage.