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Old May 12, 2008, 11:12 AM   #1
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I just bought the DMC-TZ5A and took it on vacation to Nevis to test it out. I've been very happy with it save for one issue.

On my last day, I figured I'd try to take some HDV video of the surf from our balcony. I got a pqi 4GB SDHC Class 6 card just so I could do this. However, when I tried to take the video, I got this message:

"Motion recording was cancelled due to the limitation of the writing speed of the card"

Now, as far as I know this should be a fast enough card for the 720p 30 frame recording. Am I missing something or do I have a bum camera?
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Old May 12, 2008, 12:39 PM   #2
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It may be rated as Class 6 by PQI but it may not write as fast as you expect. From what I've read on many forums, it seems that for many manufacturers the class/speed rating applies only to read speed.

If PQI is using the same oem supplier of electronics as OCZ then it may be an issue as I have run into OCZ cards that only meet their rating on read speed but not write.

And so have others...

http://www.hjreggel.net/cardspeed/
- navigate to Tests\by Cards\SDHC


Just found this...

http://www.newegg.com/Product/Produc...82E16820141243
- see the 1/26/2008 review; 3.3Mb/s write speed


If you have a good quality card reader you can check the write speed yourself.

Use this software - ATTO v2.02
I downloaded my copy from here... http://kb.ciprico.com/lore/article.php?id=268

Example of of one of my tests:




I'm pretty sure that the read speed here was limited by the USB bus. Probably could have been higher if I'd used a good quality Firewire800 or eSATA reader.

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Old May 12, 2008, 1:13 PM   #3
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Wow - thanks for a great response. I'm very annoyed to find this out and will be returning the pqi card. Can anyone recommend any SDHC with sufficient write times to work with this camera's HD video function?
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Old May 12, 2008, 7:00 PM   #4
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I have a similar problem with my TZ5 and I'm going to go for the Extreme 3 from Sandisk as this gives 20Mb/s. Like you I was also really annoyed with this error when using a Class 6 card but as it was a bundle (and a good one at that) I'm not complaining.

Let me know how you get on.
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Old May 13, 2008, 1:31 AM   #5
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I've been googling "SDHC Benchmarks ATTO" and have found a few online benchmarks. So far my Patriot Class 6 SDHC (shown in the chart above) is standing up quite well though not as good as a Sandisk Extreme III. I paid $76CAD for that 16GB card.

http://www.tabletpcreview.com/default.asp?newsID=1096


and a very interesting table of cards in various cameras...
http://www.robgalbraith.com/bins/cam...?cid=6007-9424



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