Hi Gang............. Ok here is something I don't understand. I shoot Raw with my Canon 10d I put the media card in the slot in my computer and it shows I have files that are both .crw files and .thm files. When I shoot with my 30d and do the same thing, .......it only shows .crw files. I understand that the .crw files are the raw images. What in the world are the .thm files and more importantly............... How do I stop the 10d recording them! Thanks Russ R.E. Baker Photography rebphoto@xxxxxxxxxxx www.rebphoto.smugmug.com Feed a Cat... Starve a Fever........