The SanDisk Extreme HD Video is a very good alternative to the more expensive Exteme III or Extreme IV and more powerful than the Ultra II memory card. The writing speed is perfectly sufficient for HD recording with 20MB / s in Full-HD Camcorder from the mid-range sector below 1000 Euro. I have a Panasonic HDC-SD600 camcorder with This memory card can record with 1080p50 even. Although Camcorder 32GB or able to process even more, I advise rather to 16GB solution. Dear 2x 16GB as a 32GB card, because if do now? Proves to be faulty, you have still a second SD card in reserve (price difference is relatively low). The memory capacity is sufficient in high-quality mode (HQ) for about 3-4 hours and is the battery life of Camcoders also limited. All in all, the memory card is a very good choice.