My camera has a disk format error, when turned on does not access the disk and has an error E31: 00

This error may occur if data becomes corrupt on the camera hard disk drive. To resolve this issue, it will be necessary to format the hard disk drive and reset the camera to factory specifications.

NOTE: If model-specific information is required for how to format the hard disk drive or reset the camera, refer to the operating instructions supplied with the product. Manuals are available online through the Manuals/Specs/Warranty link on this page.

Performing the recommendations above should resolve the issue. If you have completed all of the recommendations and the issue is not resolved, service may be required. Click the Repair & Status link on this page for available service options.
Refer the Operating Guide for the informatin to format the hard disk drive and reset the camera to factory specifications.

Operating Guide: http://www.docs.sony.com/release/DCRSR100.pdf

hot to
fomat

They need to be formatted in the camera to work.

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Camera Hard Drive got some error and needs to be formatted through camera menu format option.
All data on Hard Disk will be deleted by formatting it.
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format ur card on PC change the card

Take it to a camera store or to a Best Buy store and see if the hard drive has a problem with it such as a bent recording head.

Did the hard drive format completely?

try formatting the disk in windows , corrupt disk happen all the time.
right click on the camera drive and format.

1. cleaning the laser lens with isopropilic alcohol and q-tip
2. Try the reset button on the bottom of the camera. Tilt your camera and look below the LCD Display Backlight button on the bottom edge of the curved portion of the camera. You will need a paperclip or tip of a ball point pen to push the recessed little button. Place the camera on a level surface and try again. We find that the camera is very sensitive to tilting, as it gets older.
3. Make sure you format format at was FAT not fat32
4. All you need to do is "Quick format" the disk with the CAMERA rather than the memry stick plugged into the computer drive.
5. For sony error c:1301 using mini cd's: there is a program that recovers data from cd's that works with disk that have this error. It called "cdroller" Homepage is : www.cdroller.com
6. just take the memory stick off and re-insert it lot of times.. just keep doing it.

If you can find software to read UDF (universal disk format) you may be able to recover your pix. Whatever you do -- DO NOT reinitialize or finalize the disk. Your existing pix will certainly be lost if you do.