I guess I could look through the python script and get this answer but just wondering if, when you specify tshift and vr whether the output files labeled .tshift and .vr have the other operation -- that is, is the .tshift BRIK also volume registered? is the .vr BRIK also timeshifted? Or, does it depend on order -- ie. if you volreg first does the tshift operation use that volume? thanks, mb