ERROR: Could not open file : DISK_ERR

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Gordon
As far as I can see it should be fine - the relevant code is here

However I notice you're using software SPI in your connectSD example - does it still work if you use hardware with:
```
  SPI2.setup({mosi:B14,miso:B15,sck:B13});
  E.connectSDCard(SPI2, A8);
```
and what if you try:
```
  SPI2.setup({mosi:B14,miso:B15,sck:B13,baud:1000000}); // maybe try 10x bigger/smaller values for baud rate and see what happens
  E.connectSDCard(SPI2, A8);
```
My only guess right now is that there might be some issue with the wiring/SD card and the speed of communication. Software SPI might happen to be the right speed, but if there are pauses in it because of interrupts/etc then that might confuse the SD card and would account for your unreliability.

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