After formatting the memory cards in the laptop they do not work in my panasonic and the camera will not format them

SOURCE: Memory Card Format Fail

Never format a memory card using windows. Always use the camera to format it.
In genereal though, cards do not need formating before use, the camera will sort this out for you

SOURCE: won't read memory card

i hvae had this happen many times... ok this is what you will need to do. take the memory card out and look at the little brass things and clean them with something thats cotton. repeat this till it reads. i hope this will help.

SOURCE: cannot format my new memory card

see my solution at:
http://www.fixya.com/support/t389265-wrong_format_hp_m425
posted on Oct 10, 2008

Hope this helps

SOURCE: memory card cannot read!!!

sometimes lapstops and PCS as well as Cameras can go out of line. That is the formatting in a particular PC may not be able to be read in another.
In you case this may not be so, as the card now cannot be seen. It would have been interesting to see if it could have read it before it was formatted by your laptop. Try another card in the camera first. If no other card can be read then the problem is on the read head of the camera.

This may be just dirt or damage, and it will have to be repaired. But try another card first as the card is cheaper than a repair.

Thanlks for using FIXYA

SOURCE: camera will not format 4 gig card

I am having the same problem. I phoned a camera store and they said the camera is too to accept a 4GB card may only accept to a 2 Hope this helps