Several hours ago. And before that yesterday, and before that just after New Years when I burned a DVD9 full of RAW photos I had taken whilst at a relatives house.
Infact the DVD drive of one of my iMacs broke in November. I wanted to see how important optical drives are to me and within 4 days I had to run out and buy an external drive.
I don't live in an area with fast internet, recently I bought GTAIV on Steam, at 15gb it took 2 days worth of downloading. Without an optical drive that's the alternative... computers being left on overnight just to download.