Steve Anderson wrote:A note on SD cards and formatting...
This applies in general to all uses of SD cards, not just this application...from the SD Association....
The SD Memory Card Formatter formats SD Memory Card, SDHC Memory Card and SDXC Memory Card (respectively SD/SDHC/SDXC Cards) complying with the SD File System Specification created by the SD Association (SDA).
It is strongly recommended to use the SD Memory Card Formatter to format SD/SDHC/SDXC Cards rather than using formatting tools provided with individual operating systems. In general, formatting tools provided with operating systems can format various storage media including SD/SDHC/SDXC Cards, but it may not be optimized for SD/SDHC/SDXC Cards and it may result in lower performance.
The SD Association provides freely-downloadable SD Formatter software to overcome these problems for Windows and Mac OS X.
It's a quick and simple install...
https://www.sdcard.org/downloads/formatter/
There's also a users guide further down the page.
Steve A.
Later: When I started writing code for SD cards the original SDSC (standard capacity) cards were still available, it seems not any more. The next iteration is the SDHC cards (high capacity) of 4, 8, 16 & 32GB. These are still plentiful, fast and cheap. But use/buy decent ones, SanDisk or Kingston. I'll have to massage the code to suit.
Though I get the feeling I may have to do a similar exercise when the SDHC versions are made no more and force migration to SDXC cards (eXtended Capacity of 32GB plus).
Speed, it appears, shouldn't be a problem with these more recent cards, both SDHC and SDXC,
smeezekitty wrote:At audio frequencies, I can't imagine SD card formatting would make a bit of difference. At high-bit-rate HD video, sure I could see it but an SD card is chilling when playing .wav files
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