exfat on SD card getting mounted read-only

[jd1008]

On 08/27/2014 07:10 PM, Tim wrote:
> Allegedly, on or about 27 August 2014, jd1008 sent:
>> The card was bought from Costco and I am not sure it
>> carries a warranty. I have had it for about a year.
> I can understand that.  I still wonder if the sensor is mechanical, or
> optical.  I've had optical sensors that fail when ambient light is too
> much for them (just try servicing VCRs under bright light, and you have
> to cover optical sensors up to get the deck to do anything, likewise for
> people trying to use some VCRs in daylight).
>
It is electro-mechanical. No opticals involved at all.