ERROR MESSAGE: Corrupted CompactFlash card.

try another new CF card in your camera, sometimes if you have used your pc to format the card, the camera rejects it,

Its a very common problem with S400,S410 and some others.

As a case study, see the following error message on the Canon IXUS 130 when trying to view some photos previously stored in the memory card SDHC

"Memory Card Error"

Every single photo stored on the memory card becomes inaccessible after the above error message. In addition, no more photos can be stored on the memory card. In short, the card can not be read or written.

Cause:
The above error message that makes all the pictures inaccessible is mainly caused due to corruption of the memory card. Reasons why you are responsible for the above error message is virus infection, interrupted read / write operation, and human error.

Resolution:
The resolution for the above error message is the format of memory card into the camera. The process erases all data previously stored and allows you to save the new data. While the format is a good resolution for users who do not require the old data, it is fatal to users such as photographers, detective agencies, etc, to save critical data on your memory card. However, the formatted data recovery day is now an easy process. It is therefore necessary to use an advanced part of third parties. A tool for image recovery is readily available on the Internet by one click.

Data Recovery is an application of high-end recovery that recovers data from almost all formats SDHC Card, XD and MMC. The read-only photo recovery tool also allows you to restore data in the defined location. The software runs on Mac OS X and Windows.

Check this link for additional details: Simple Fixes for SD "Memory Card Locked" or "Memory Card Error"

Hope helps.

Problems typically are pretty rare with Panasonic Lumix digital cameras. On those occasions where you do have an issue, though, look for an error message on the Panasonic camera for some clues as to how to fix the problem.
he seven tips listed here should help you troubleshoot your Panasonic camera error messages.

1. Built-in Memory Error error message. If you see this error message with your Panasonic camera, the internal memory area of the camera is either full or corrupted. Try downloading photos from the internal memory. If the error message continues to appear, you may need to format the internal memory area.
   
2. Memory Card Locked / Memory Card error message. Both of these error messages are related to the memory card, rather than the Panasonic camera. If you have an SD memory card, check the write protect switch on the side of the card. Slide the switch up to unlock the card. If the error message persists, it's possible the memory card is corrupted and needs to be formatted. It's also possible the memory card was formatted using another device that is not compatible with Panasonic's file structure system. Format the card with your Panasonic camera to fix the problem ... but keep in mind that formatting the card will erase any photos stored on it.
   
3. No Additional Selections Can Be Made error message. If your Panasonic camera allows you to "save" photos as your "favorites," you may find this error message because the camera has a limited number of photos that can be labeled as favorites, usually 999 photos. You cannot mark another photo as a favorite until you remove the favorite label from one or more photos. This error message also may occur if you're trying to delete more than 999 photos at one time.
   
4. No Valid Picture error message. This error message typically refers to a problem with the memory card. Most of the time, you'll find this error message when you try to play back images from the memory card and the memory card is corrupted, empty, broken, or has been formatted with another camera. To fix the memory card, you must format it, but formatting a memory card causes all photos stored on it to be lost. Try inserting the memory card in another device or in your computer and try downloading any photos stored on it before formatting it with your Panasonic camera.
   
5. Please Turn Camera Off And Then On Again error message. At least this error message says "please." This error message most likely occurs when one of the parts of the camera's hardware is malfunctioning, usually a jammed lens housing. To try to fix this problem, start by turning the camera off for a few seconds before turning it back on. If this doesn't fix the problem, try resetting the camera by removing the battery and memory card from the camera for at least 10 minutes. Replace both items and then try turning the camera on again. If the lens housing is jamming as the lens moves through its zoom range, try gently cleaning the housing, removing any debris or grime. If all of these steps don't fix the problem, you'll probably need a repair center for the camera.
   
6. This Battery Cannot Be Used error message. With this error message, you've either inserted a battery that's incompatible with your Panasonic camera or you've inserted a battery that has dirty contacts. Gently clean the metal contacts with a dry cloth. In addition, make sure the battery housing is free of debris. You sometimes may see this error message if you're using a battery that's not manufactured by Panasonic. If the third-party battery is working OK to power the camera, you probably can ignore this error message.
   
7. This Picture Is Protected error message. You'll see this Panasonic camera error message when the photo you've selected has been protected from deletion. Try working through the camera's menus to figure out how to remove any protection labels for the photo files.
   

Keep in mind that different models of Lumix cameras may provide a different set of error messages than is shown here. If you are seeing Panasonic camera error messages that aren't listed here, check with the user guide for your model of Panasonic Lumix camera for a list of other error messages, or visit the Support area of the Panasonic Web site.

The S7000 has always been known to have some problems with regular CompactFlash cards, with both power drains and limitations reported (the S7000 seems unable to handle CompactFlash cards above 2GB, as it doesn't support FAT32). I imagine it's possible that there are other potential problems associated with this.

It's usually recommended that, instead of using CompactFlash cards, you use either xD-Picture Cards or IBM/Hitachi Microdrives, which are both fully compatible with the S7000.

This is from Konicas site. don't know if this will be any help for you since you had posted a long time ago. you most like have a new camera by now. anyway. Question: When a CompactFlash is loaded, a message of "Card Error. OK" appears and remains on the monitor display. Answer: Please follow the procedure below. While the message is displayed, press the center of the controller. The monitor display and data panel will turn off. Turn the Main Switch dial to OFF position and remove the CompactFlash from the camera. - When "No Card" message appears next time when the camera is activated in the recording mode, the camera and CompactFlash are OK. - When "Card Error. OK" appears again, the CompactFlash may be faulty. Use other card.

The PDC 700 digital camera has 4 MB of internal flash memory on which to store images. An optional ATA-compatible Type 1 CompactFlash memory card gives your camera substantially more memory, allowing you to store more images or images of higher quality. images captured on the CompactFlash card can be downloaded using the same method as you use to download photos from the internal memory.

Please follow the procedure below: 1. While the message is displayed, press the center of the controller. 2. The LCD monitor and data panel will turn off . 3. Turn the Main Switch to OFF and remove the CompactFlash card from the camera. 4. If "No Card " message appears at next time the camera is activated in the recording mode, the camera and CompactFlash card are OK. 5. In case that "Card Error. OK" appears again, the CompactFlash card may be faulty. Use other card.

Storing digital picture information to a CompactFlash card (as when a digital image is taken) is similar to storing data on the hard drive of a computer -- if the process is stopped or interrupted, the information stored is not complete and, therefore, "corrupts" the storage media. A computer will display a warning message indicating that the hard drive has errors, while a camera will display a message indicating the memory card is corrupted. The CompactFlash card corruption can be caused by: * Turning off the camera power before the photo information is completely stored on the card. * Removing the card before the photo information is completely stored on it. * Taking a second picture before the camera has finished storing the previous picture. * Camera batteries that are near the end of their life and need to be replaced. Once a CompactFlash card is corrupted, it can be used again only by performing a Format procedure. IMPORTANT! When a CompactFlash card is re-formatted, any pictures stored on it will be lost forever and cannot be recovered.

A digital camera's Format command is used to prepare a removeable CompactFlash memory card to accept digital image information from the camera. A card should be formatted when: * the card is new and has never been used before. * the card was used in a different camera or other device that accepts CompactFlash cards. * the card has become "corrupted" and will not store additional images.

You may be able to store up to 110 images if you use the camera in its lowest resolution mode. In high resolution, you may get only 24 shots. We wish we could tell you precisely, but it depends on the exact size of the file created by a given camera, as well as the resolution that you select. Keep in mind that Secure Digital, CompactFlash, and SmartMedia memory cards are competing products and are not interchangeable. You'll find a few cameras that are compatible with more than one brand, but generally when you buy a digital camera today, you'll be making a commitment to work with one type of memory card. Use the attached chart to determine the average number of photos that Secure Digital memory cards can store (compatible with most HP digital cameras)