Years ago when a prospective client would ask how much how much space document scanning could save, we used to proudly say that a CD-ROM will hold an average of 12,000 A4 pages – which is slightly more that two four drawer filing cabinets.
And it still does, but today you can pop down to a high street shop and get a USB stick that will hold 1.2 million images. That’s a lot of filing cabinets!