We have discovered that the original image data of TIFF (RAW) images shot with an EOS-1D or EOS-1Ds Digital SLR Camera, and rotated or edited using Windows Explorer or Windows Gallery on a computer running Windows Vista, will disappear from the computer’s memory. The image data that disappears cannot be recovered. Customers who use the affected products should follow the countermeasure below.
* The following are examples of those properties that are commonly edited:
After installing this software, if you display TIFF (RAW) image previews in Windows Photo Gallery, a message will appear: "Photo Gallery can’t open this picture or video. The file appears to be damaged or corrupted." The file is not actually damaged, so please do not be alarmed.
The TIFF (RAW) image data taken with EOS-1D and EOS-1Ds can be checked in Canon's image viewing/editing software, ZoomBrowser EX or Digital Photo Professional. The Windows Vista™-compatible version of ZoomBrowser EX is available by going to: