http://www.usatoday.com/tech/news/surveillance/2008-07-13-pr...
It's mostly a non issue, but there are always edge cases. For example there is software that let's you print backup data that can latter be scanned in which was somewhat hampered by this technology. 600DPI * 600DPI * 24 bits * 8.5inch * 11 inch = ~100mb a page which is not all that amazing today, but still useful in the early 90's.