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Old Nov 25, 2003, 11:59 AM   #21
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Originally Posted by Panasonic
Again, I must say that when use with DSC's for capturing still images, a "faster" card is not going to inctrease performance. The serial interface used is based on one speed. You decision should be based on size and cost.
In other words, the FZ10 uses the serial interface of the SD cards, which is limited to ~2MB/sec.

Therefore, unless you are planning to use the same card in other equipment that can utilize the extra speed of the parallel interface, there are no benefits in using the faster (and more expensive) cards.

However, that assumes that the actual speed of the card is equal to the theoretical one but, as we know, this is a QOI issue.

Now, I ran across SD cards from Shikatronics that seem to be cheaper than SanDisk (at least according to the Canadian Office Depot site - CAD$113 for 256MB) and support the parallel interface. Interestingly, they advertise the serial interface as 2.5Mb/sec.
Oh, and if you want to buy from that store, make sure to use a coupon.
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Old Nov 25, 2003, 2:02 PM   #22
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Originally Posted by alexo
There is no longer USB 1.1. It has been officially renamed to USB 2 "full speed" (12Mbps as opposed to the 480Mbps "high speed").
And officially TWAIN doesn't stand for Technology Without An Interesting Name but if you ask an old techie what TWAIN stands for what do you think they'll say?
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Old Nov 25, 2003, 3:45 PM   #23
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Alexo Wrote: "In other words, the FZ10 uses the serial interface of the SD cards, which is limited to ~2MB/sec.

Therefore, unless you are planning to use the same card in other equipment that can utilize the extra speed of the parallel interface, there are no benefits in using the faster (and more expensive) cards. "


<Response>
That's correct.
Anything I've read suggests that even early SD cards will conform to the 2 mb/sec transfer rate. I've used Kingstion, San Disk and IBM in my testing and the read and write speeds are virtually identical.

It's also possible that the amount of files / free space on a card can influence speed, so if you want to compare, star with empty cards so file fragmentation doesn't skew the testing. Using larger files makes the testing a bit easier.
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