Hi experts, 

I often encounter something like this. When I use dcm2nii to convert a Dicom folder to nii, I can often get multiple nii files for the same sequence. For example, I would get two files at the same time

20140507_001838ep2ddiffMDDW30p2Jone.nii.gz
20140507_001838ep2ddiffMDDW30p2JoneF.nii.gz

They are actually from the same DTI sequence. What's the difference between these two files and why does dcm2nii generate the two of them?

Thanks
Yishi