On Tue, Dec 17, 2013 at 11:28 PM, Brian Walters
<[email protected]> wrote:
> I've never had any problem formatting my SD cards in camera but the SD
> Association (they maintain the SD Card standards) suggest that you can get
> better performance using the SD Formatter 4.0 software for SD/SDHC/SDXC
> cards.
>
> It's a free download for Windows & Mac.
>
> https://www.sdcard.org/downloads/formatter_4/
I would be most curious to find out what exactly this formatter
does. (I.e. how it actually partitions the card, and what FAT tuning
parameters it uses.) Maybe there is a document about it somewhere...
(I'll have to search when I have the time.)
Because I've tried to manually partition and format an SD card on
my Linux laptop and my Pentax K-30 refused to read it (saying it
wasn't formatted).
By "manually" I understand the following "fine-tunings" (I don't
remember all the exact tries, but they are on the following lines):
* make the FAT partition start at exactly 4MiB (i.e. 8192 x 512
byte sectors); (although I've tried other variations like 16 MiB or 1
MiB as are the current best practices for hard-drives;)
* `mkdosfs -v -F 32 -f 2 -s 128 -S 512` (i.e. maximize the sector
size, reduce the number of clusters);
Ciprian.
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