C3201 system error appears on screen wnen memory card inserted in camera

SOURCE: "Memory card is unusable"

This error message means that the memory card is slow, corrupted, or unreadable. Turn off the camera then insert a new memory card.

SOURCE: File Error report on a W80 camera....

If you bought your memory card on eBay, there is a good chance that is the problem, as i had that issue myself....after dealing with the seller and getting my money back, i went and bought a sony 4GB card from Circuit City, worked fine for a while, and then got the same error. I have a feeling it has something to do with the camera's software. I havent tried the battery trick yet but its next on the list

SOURCE: Format Error in Sony Cybershot

there is no tools feature on the sony...select the 1st button lower right...all touch screen features appear...select menu in lower
left...select setup...camera 1 will display...select down arrow
twice until you reach format, the select...that should reformat
the memory...

SOURCE: CAMERA READS -CARD ERROR-AFTER INSERTING A NEW MEMORY CARD

First, make sure that the new memory card does not have the protect tab in the lock position. The new card must be unlocked and formatted before your camera will be able to use it. Also, make sure that the size card that you have purchased has not over shot the ability of your camera. I think that a 2 GB card is as large as you can use. Just because the card fits into the slot does not mean that the camera will address it!

SOURCE: No CF card

The camera body has a tiny switch marked "CF" in one position and Sony's "memory stick" symbol in the other. Apparently I accidentally reset the switch from "memory stick" to "CF" while slipping the camera body into (or out of) its carrying-case. Once I had set this switch from "CF" back to the "memory stick" position, everything worked fine. Solution:  read the user's manual more carefully next time!!