1)Create AFNI dataset using to3d
to3d  [-options]  <image_files>
 Class Example (the long way):
    cd lc_play
to3d  -prefix mprage1   001/I.*
to3d  -prefix mprage2   002/I.*
to3d  -prefix mprage3   003/I.*
to3d  -prefix mprage4   004/I.*

Volume
preprocessing
Segmentation
Tessellation
Inflation
Manual Editing
Re-inflation
Fix topology
Final Surface
Volume/Surface
postprocessing
Cutting &
Flattening