We have just returned from a trip to Turkey, and have been using the Archos as a photo backup and viewing device. It has performed excellently, viewing RAW files from both the 30D and the 300D, I think it actually views the embedded JPGS, but it does so very well, and with the Battery Dock and a card reader attached, copies photos to the device at a reasonable speed. With over 2000 photos in 6 days, we needed the extra capacity and were then able to plug the Archos into a PC at the holiday villa to do first pass workflow and rating, ready for the review sessions with our course leader in the evening.