I picked up the WD Purple SC QD101 32GB microSD Card to use in my security camera, and it has worked reliably so far. Since it's surveillance grade and built for continuous 24/7 recording, I don't worry about it wearing out quickly like a regular memory card. The ultra-endurance technology seems to handle the constant video writing without any hiccups, and playback has been smooth. It's a solid, no-fuss choice for anyone running a camera that records around the clock.