Shooting in raw with the 10d, files come up as CRW.
Shooting in raw with the 30d, files come up as CR2. When I try to open these in CS2, I get this statement---"Could not complete your request because it is not the right kind of document."
What have I not done correctly?

Canon 30D, Sigma 50-500 EX DG HSM. Tamron SP 90mm F/2.8 Di Macro.
