I would try doing 3 things then:
Inspect the card slot with a strong light and magnifying glass to look for something obvious inside like dust or damaged contacts
Remove the battery and hold the on switch in the on position for at least 30 seconds then try it again
Perform a reset to defaults thru the settings menu
Have a Canon IXUS160 & the memory card comes up as ERROR approx evrey 2 months. OK I can re format it but obviously I lose all exisisting photographs. I usually keep it clear anyway by trnasferring to my computer but what happens if I am away from home? I just cannot rely on it.
A couple of friends have cameras that they can store images galore on them seemingly indefinitly. My memory cards are from Curries `Sandisc`.
The major brand of SD card is called "SanDisk"
I have used cards for years with no problems. I think you need a name brand card like SanDisk, Lexar and PNY.
I assume you are using a full size SD card. If it is microSD, you are doubly cursed. Get a full size, name brand SD card.
I have an older SX10 IS camera. I have never used it to record video, but it was suggested by a friend, when I mentioned I was taking a trip and was thinking of buying a new movie camera, to use the SX10 and record movie video with it. Seems logical, but what size capacity SD, SDHC card would work?
A few nights ago, I bought a 64 Gig Ultra Plus San Disk and it would not format. It appears this card may be too new for the camera! Any suggestions?
Thanks for posting.
Please double-check the camera model you're using and let us know which one it is.