I have a Canon 1100D and I started taking pictures in the RAW+JPG mode. For some reason when I open my files on my PC I see 2 files, but both of them are JPG (they even have the same size). What is the problem and where is the RAW file?
It is possible that your version of Windows in not up to date and does not contain the codec's required to support the Canon RAW format. Windows did not, until recently, have this built into the system.
Try the Microsoft Codec Pack, which should give you the ability to show and use the RAW files.
Also, if you have the necessary RAW support, in this case, .cr2 files, both images will display similar images in preview. The RAW file embeds a JPG image within it, in order to display a preview for use in such things as Windows Explorer or Mac Finder. If you have Windows configured to hide file extensions for known file types, you may see a RAW file behaving as a JPG. If you do not see .jpg at the end of the file, this may be the issue. Turn on file extensions to confirm that these are indeed .cr2 files.