afni.nimh.nih.gov

What is the output using just 3dcopy, is it the same?
What is the output of "ls -l" on it?

3dcopy s11a_fa_reg_ng+tlrc s11a_fa.nii
ls -l s11a_fa_reg_ng+tlrc.*

Please feel free to upload that dataset, and I'll take a look.

- rick