i just purchase it and have not used. The recorder does not come with memory, so you need to purchase a micro-SD card. I bought a 32 gig card. The recorder has display for remaining time on card. A resolution recording setup at 1080 the recorder shows 279 minutes remaining at 720 resolution the display shows 540 min. I also grab an old 8 gig card and at 1080/69 min, 720/ 134 min.