Yes on occasion

I buy CDs and DVDs on occasion, but I've never gotten into Blu-ray. I burn DVDs to make copies of Windows and Ubuntu discs, and I use CDs to make occasional copies of music or software. If I download software, I immediately burn it to a CD or DVD so I don't lose it and have it for backup. I have to say though that's getting less and less frequent because I use my WiFi and LAN at home and flash drives for portability when needed. It's probably been 2 years since I bought CD-Rs or DVDs though.