I understand that using these cards is a kind of happiness. I seem to have a good card that records at 90MB/s regularly, so there's no problem recording continuously at 1080p 24fps with 5D Mark III raw video. I've also started using it as my main card when taking photos at weddings. At first I loved how quickly I could shoot, but I was getting nervous about putting pictures of the entire wedding on one card. Now I pair this with a 64GB Sony SD card as a live backup. This obviously takes away the speed advantage, but at least I don't have to worry about running out of memory OR the card crashing when photographing a wedding. esata I get a transfer rate of about 100 MB/s. Maybe I'll get another one.
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