View Single Post
Old Jan 30, 2011, 04:14 PM
Tom Frank is offline
Find More Posts by Tom Frank
Dance the skies...
Tom Frank's Avatar
United States, MA, Walpole
Joined Dec 2003
19,007 Posts
What memory should I get for this camera?`

Quote:
Originally Posted by wjbite View Post
Great job Frank.

Having stumbled on to this thread I may give these little guys another try.
I lost interest due to poor performance - the hacking was fun for a while but the after all the fun, the results were always unsatisfying.
The first question that came to my mind while trying to decide if I was going to fork out $40 was this:
What about the memory card?
I remember that some of the performance issues of old were due to the type of memory card. Does that problem still exist? If so what card should I order at the same time I order my new camera?
I did look at the FAQs and saw no mention if this issue.
I would guess anything above 4 GB would be overkill - but what about card class?
If I missed it - sorry

Thanks for you continued efforts,
Walt Bankes
Hello Walt,

I guess it's time I add some details on flash memory cards since questions come up occasionally and the instruction sheet that comes with the card is a bit confusing and even conflicting. Thanks for reminding me!

First, this camera does NOT have the dropped frame issue of the old 808 cameras. So the card speed is less of a problem than it was. I don't know what the minimum speed class is that will assure no dropped frames, simply because the speed class only guarantees a minimum SEQUENTIAL write speed, and the dropped frame issue is more related to the RANDOM write speed, which is MUCH slower as the graph shown on the chucklohr.com web site shows.

The instructions sheet that comes with the camera says to use at least a Class 4 card, and I think that is good advice to avoid problems. Some users have reported OK recording with a high quality Class 2 card (i.e. Sandisk). But in any event, I would avoid "generic" cards or little known brands. Personally, I go for a Class 6 card since the cost is difference is negligible. And I found the Transcend Class 6 card shows test results consistent with the top one or two results posted in the graph I referenced above. The best everyday price I have found on the web is at this site (about $10.60 delivered in the US in about 3 days), but other places (e.g. Amazon.com and newegg.com) sometimes have good deals also. There are other good cards, just none that I have used. But the camera instructions are a bit conflicting when it mentions "SDH4" cards. The camera takes a MICRO SDHC cards as you know, not a standard size SDHC card, so that is worth clarifying.

7/7/2011 <Edit> The Transcend Class 6 cards have shown sequential write speeds in excess of 10 mB/s, which meets Class 10 criteria. Transcend is now selling Class 10 cards for the same price as the prior Class 6 cards. They are most likely the same cards, just renamed, and some speed test results confirm this.

New flash memory should not need formatting, but if you do format them, you should use the SD Formatter utility. The PCs normal formatting with the FAT32 file system will usually work, sometime favorably, but there are documented cases where a card is formatted in a different camera and then does not work in the #11, even when reformatted with a PC. Formatting with the SD Formatter utility fixed the problem. <End Edit>

As for minimum flash memory size, the stock 250 mAH camera battery only lasts for about 45 min. max., and it does an automatic stop/save/continue function every 20 minutes (unless you install the continuous recordin firmware), with about 3-4 seconds of lost video in between. The 20 min. file sizes differ, since some cameras for unknown reasons have about a 10 MB/s bit rate with about 1.5GB file size, and others 7MB/s and 1.03GB file size (which is still plenty high enough for the video this camera can produce). So, with a 2GB card, you won't get all the video that the battery can normally provide on a single charge. But a 4GB card is big enough to record all that the SMALL #11 camera can record with a fully charged battery. The larger Jumbo #11 would utilize most of an 8GB card, though. The only need for a larger card would be the desire to store additional video on the card before it is copied to your computer to free up the space, such as recharging the battery and shooting more video, or using external power such as the included car charger that comes with it to record for longer periods of time.

In ALL cases, test your new flash memory card for full memory capacity verification using the h2testw.exe utility (should get no errors), and for read/write speed with the Crystal DiskMark utility (2MB/sec. is a very good random write speed for the 512K test, and 1MB/sec. is the low end of acceptability for good performance.
Tom Frank is offline Find More Posts by Tom Frank
Last edited by Tom Frank; Feb 01, 2012 at 09:14 PM. Reason: added info and links to flash memory testing utilities