If it still doesn't work, please check the error condition, and
give a full detail of the error condition.
Answer by Narcís2009-10-26
With cards SDHC (4 and 8 Gb) gives me the message
They have formatted in all ways. With the camera, with the PC, with software SD Formatter of Panasonic, and there is not way. The case is that when I acquired the M1, it read them, and suddenly stopped making it.