Just to close the loop on this thread: I got through to Epson and they helped me to reset the P-2000 so it stores .arw files but it shows them as an ikoned square rather than as a thumbnail. They have no plans to update the P-2000 so it can read .arw files. Interestingly, the P-3000 supports these files and can read them but the techies warned against using this software in the older model. So will the P-3000/5000 be able to read the newly announced Canons and Nikons?