I’ve just tried this and it works flawlessly.
I’ve used this MRHead.nhdr
file:
NRRD0004
# Complete NRRD file format specification at:
# http://teem.sourceforge.net/nrrd/format.html
type: unsigned short
dimension: 3
space: left-posterior-superior
sizes: 256 256 130
space directions: (0,1,0) (0,0,-1) (-1.2999954223632812,0,0)
kinds: domain domain domain
endian: little
encoding: raw
space origin: (86.644897460937486,-133.92860412597656,116.78569793701172)
data file: MRHead%04d.raw 0 129 1
with filenames:
MRHead0000.raw
MRHead0001.raw
-
MRHead0002.raw
… MRHead0129.raw
All the files can be downloaded from here.