Just a quick note to say that, despite their 10 class speed rating, the two 32GB Patriot SDHC cards I tried in my D7000 did not work properly. The various symptoms were camera lock-up, "Card ERR" message, inability to format at times, inability to view in playback etc. When I returned the cards to the shop, they said they had received other complaints re Patriot 16GB and 32GB cards. I now find there are also quite a few comments on DPReview re problems with Patriot SDHC cards.
The same Partiot 32GB SDHC cards work perfectly in my son's Nikon D3100 - both for single shots and movie mode.
The very cheap ($A11) Team brand class 10 4GB cards work perfectly in the D7000, as do the very expensive ($A66) Sandisk Extreme III 8GB class 10 cards.
Seems it's very much a matter of trial and error.
I'd be interested to hear comments from other users re their experience with other brands of SDHC cards.
I'm using a Patriot LX 16GB C10 card without trouble but I may need to relegate it to backup. I was looking at the Patriot 32GB, so thanks for the heads up. The Transcend 16GB C10 cards seem to work well.
Like the other couple of posters, I'm also using two Transcend Class 10 16GB SDHC cards, but unlike them, I AM having problems with mine, mainly, every now and then, I get the Card Err message. Seems a bit random, maybe mine are from a bad batch. I probably need to experiment a bit, and use just one, then the other card for a while, to see if it's just one card that has a problem.
I use a 32GB Patriot Class 10 card with no problems at all. Could it be that you got a counterfeit?
"all class 10 cards are not equal. In camera you should be concerned with the write speed, to transfer your pictures it is the read speed which is very much effected by reader speed (Quality of USB cable or Firewire connected to camera, card reader, and even software used).
"If you own a camera or camcorder that uses SD cards, chances are you've confounded yourself at some point trying to figure out how fast a card you need (or want) for your device. This is complicated by a lot of factors, primarily that the Class specification defines a minimum sustained transfer rate--Class 6 is 6 megabytes per second, Class 10 is 10MBps, and so on."
While the 32GB patriot cards were purchased from a reputable outlet, these days it's very hard to be sure you are getting the genuine gear. Dealers who have been found to be selling counterfeit gear are often unaware it is not the real thing. I've sent an email to Patriot, so it will be interesting to see their reply.
"Re: D7000 and Patriot LX 16GB SD cards dmulligan - 2 weeks ago I have two 8GB Patriot LX Class 10 cards that work great so I bought 2 32GB cards on sale for boxing day. The 32GB cards do not work in the d7000. They will both write a few pictures but they fail oddly when trying to review or delete those pictures. The green light stays on for a very long time and the camera is mostly locked up."
My experience mirrors Vladmans with Transcend cards. Two of my 32 GB class 10 cards failed right out of the packaging, while two worked. I returned all four for replacement. Transcend took three weeks to replace the cards. Lesson learned. Richard
I have always used the Sandisk cards both CF and SD and have not had any problems whatsoever. There speed is also excellent on the Extreme SD cards. Yes they cost a little more but it seems worth it to me since they are as fast as you can get and they work without problem.
Marc There are always two people in every picture: the photographer and the viewer.-Ansel Adams
I have also found Sandisk to be very reliable! I have bought CF cards for my D70 and D300. I have found the Ultra cards to be more than sufficient. As I have moved to the D7000, I bought 2 Sandisk Ultra 8gb for $24 at Staples. If you watch the local stores, you can always find reasonable sales on Sandisk memory cards.
My only failures have been with PNY cards. I have also used Lexar cards but found them to be more costly than Sandisk.