Microsoft has cautioned photographers who use Canon’s EOS-1D and 1Ds cameras against adding metadata to files opened on certain computers.

 

February 27, 2007: Microsoft has cautioned photographers who use Canon’s EOS-1D and 1Ds cameras against adding metadata to files opened on certain computers.
The warning is as follows: “There is an issue with Canon RAW files that end in .TIF (which are limited to 1D & 1Ds cameras) on Windows Vista systems that do not have the Canon RAW codec. If a user adds metadata to one of these files, using the Windows Photo Gallery or the Windows Explorer, the file will be corrupted. This is a result of the Windows Imaging Component API not understanding the difference between a legitimate TIFF file, and a Canon RAW file with a .TIF suffix.
“Microsoft and Canon have identified the issue and are testing a patch to address the problem. We will provide download information once the patch is released.”