07-05-2010, 03:30 AM
I don't know of any other physical media that can compare in terms of price to storage ratio or is as ubiquitous. If we are discussing burnable CDs, they can be rewritten hundreds of times if you purchase rewritable media. For people who purchase movies on disc, it also gives you a collectible, unlike a digital download which is ephemeral and somewhat lacking as a keepsake.