AMI USB Issue

[pwacka8]

Hello All
I have a 2007 A8 with AMI installed , the car originally came with no cables so i purchased a AMI to USB cable of ebay ,plugged it in and everytime i plug a usb stick in (tried all different format options exfat,fat32 ect) i get the message displayed in the attached photo.

Has anyone seen this issue before , im not sure if it is refering to the AMI operating system or the files on the usb stick.

I think that i may need to run the MMI update and update the AMI software , can you just update the AMI on its own ??

Thanks as allways

PWACKA8