Invalid sd card message

[Dr Jon Morgan]

Hello, I am new to these things, had a wonderful 16 for years and loved the simplicity of reel recording. I have tried to format the sd card, a Scandisk extreme PRO 64gb, but after it finishes formatting it comes up with invalid disk. What can I do, this disc is new and reputable. help please. Thanks JON

 

[Phil Tipping]

Hi Jon and welcome to the forum.
What firmware version are you running? I don't have one of these, but there are issues with card sizes depending on the firmware version. Seems you need the latest firmware to access large cards, so you have to use a smaller card in order to upgrade the firmware.
This thread may help, posts #12 and #14.
Let us know the outcome.