recommendation on a class 10 32gb SD card

Forums › Digital Imaging › recommendation on a class 10 32gb SD card

merve0o0

492 posts

Ultimate Geek

#102712 20-May-2012 22:16

hey I just bought a gopro HD hero 2 and am looking for a SD card for it.

Im wanting a 32gb class 10 card. looking on pricespy the most popular choice is this

http://pricespy.co.nz/product.php?p=605300

I dont mind getting that but i did a bit of reading and allot of people say it cannot do HD video recording.

I would like one of these but im not paying $200 for a sdcard

http://pricespy.co.nz/product.php?p=969000

i found them on amazon for around us$50 but no where would ship to nz.

can anyone recommend a good card available in NZ or an overseas store that ships to NZ for a reasonable cost. i would prefer from nz so i can use my camera sooner

edit another option is

http://pricespy.co.nz/product.php?p=568596

timmmay

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#628105 20-May-2012 22:28

Transcend or SanDisk. Beware of fakes.

merve0o0

492 posts

Ultimate Geek

#628106 20-May-2012 22:33

Thanks yea i know about the problem with fakes.

how does Kingston compare to Transcend?

timmmay

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#628117 20-May-2012 23:00

Kingston reputable but entry level, should be totally fine. For my weddings I use only expensive SLC transcend (if it's cheap it's MLC) or SanDisk extreme.

rp1790

738 posts

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Lifetime subscriber

#628237 21-May-2012 10:46

I have one of these, more than happy with it. I have recorded 3hrs of 720p video non-stop without any problems. Price $69.95!

http://www.trademe.co.nz/electronics-photography/memory-cards/sd-media/16g-and-over/auction-476302503.htm

Ragnor

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#628247 21-May-2012 11:08

Sandisk 32GB class 4 is quite highly recommended.

"Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds."

Refer to:
http://www.xda-developers.com/android/32-gb-micro-sd-analysis-speed-test/

http://forum.xda-developers.com/showthread.php?p=15269669#post15269669

NZtechfreak

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#628248 21-May-2012 11:09

Why Class 10? Only rational reason to spend the extra money on Class 10 is if you regularly change up large amounts of files on your card via a PC.

Twitter: @nztechfreak
Blogs: HeadphoNZ.org

edge

423 posts

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#628285 21-May-2012 12:11

Ragnor: Sandisk 32GB class 4 is quite highly recommended.

"Class 2 and 4 cards have better random access speed and random read/write than class 6 or 10 cards in general. To get higher sequential write speeds, manufacturers sacrifice the random access speeds."

Refer to:
http://www.xda-developers.com/android/32-gb-micro-sd-analysis-speed-test/

http://forum.xda-developers.com/showthread.php?p=15269669#post15269669

That was my understanding as well when I researched a card for my new camera (still, but takes HD video as well). I took the cautious approach and went for potential limiting factor in camera which was sequential write speed. So I got a class 10 for that purpose - if for phone, I would have gone for class 4 definitely. May be that c4 would have been sufficient (I am not expoert enough to know for sure). What I did find out was that different cards in same class can produce varying results - so I used CrystalDiskMark to check both the Sandisk c10 and the Fuji c4 that came with camera. As a matter of interest, results are shown below (sorry about text - too lazy to figure out how to post charts!).
4GB FUJI SD CARD Class4
-----------------------------------------------------------------------

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo

                           Crystal Dew World : http://crystalmark.info/

-----------------------------------------------------------------------

* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

            Sequential Read :    14.981 MB/s

          Sequential Write :     5.776 MB/s

         Random Read 512KB :    14.822 MB/s

        Random Write 512KB :     1.028 MB/s

    Random Read 4KB (QD=1) :     4.737 MB/s [ 1156.6 IOPS]

   Random Write 4KB (QD=1) :     0.015 MB/s [     3.7 IOPS]

   Random Read 4KB (QD=32) :     5.339 MB/s [ 1303.4 IOPS]

Random Write 4KB (QD=32) :     0.014 MB/s [     3.5 IOPS]
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

SanDisk Class10 30MB/s 8GB Extreme HD Video

-----------------------------------------------------------------------

CrystalDiskMark 3.0.1 x64 (C) 2007-2010 hiyohiyo

                           Crystal Dew World : http://crystalmark.info/

-----------------------------------------------------------------------

* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

           Sequential Read :    21.353 MB/s

          Sequential Write :    20.182 MB/s

         Random Read 512KB :    20.860 MB/s

        Random Write 512KB :     1.947 MB/s

    Random Read 4KB (QD=1) :     3.645 MB/s [   889.9 IOPS]

   Random Write 4KB (QD=1) :     0.161 MB/s [    39.2 IOPS]

   Random Read 4KB (QD=32) :     3.977 MB/s [   970.8 IOPS]

Random Write 4KB (QD=32) :     0.171 MB/s [    41.8 IOPS]

"It is useless to attempt to reason a man out of what he was never reasoned into."
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lorenzo

91 posts

Master Geek

#628303 21-May-2012 12:43

Personally from my reviews and experience the Class 10 was overkill for home video HD. I went the Class 6 route and also on noting that the camera writes a new file each time you start / pause/resume recording the 16Gb/8Gb cards were fine and reasonably priced. Better to have more cards in case you lose or one gets corrupted as only lose what's on that card. Remember SD cards are not forever and do 'wear out' with constant read/writes

merve0o0

492 posts

Ultimate Geek

#628315 21-May-2012 13:02

On the gopro a class 10 card is required for the timelapse mode. While I will probably not use the 0.5 sec delay I would like the option. I will probably get some cheaper cards for video and keep the class 10 for time lapse.

I got the transcend card in the end. Thanks all for the advice