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Hi - I'll take a stab at this - Matthew can correct me if I get the details wrong: We've switched over the the sourceforge version of the NIFTI IO library, and I suspect that's what's causing this. We'll fix this ASAP, but in the meantime: I believe that you can ignore this warning, or alternatively just pass the data through fslmaths once and then it should go away.....: fslmaths <image> <image> Cheers, Steve. On 16 Aug 2007, at 17:35, Roosendaal, S. wrote: > > > -----Oorspronkelijk bericht----- > Van: Stefan Roosendaal [mailto:[log in to unmask]] > Verzonden: donderdag 16 augustus 2007 18:29 > Aan: [log in to unmask] > CC: Roosendaal, S. > Onderwerp: nifti-read-buffer in FSL 4.0 > > > Dear FSL people, > > I get an error message when I perform FSL 4.0 commands on my data. > It is > the following message: > > WARNING: nifti_read_buffer (name of the file.nii.gz) > data bytes needed = 17301504 > data bytes input = 17301500 > number missing = 4 (set to 0) > > The above message is from fMRI data, I got the same message (with > exactly > the same numbers) from data from 50 different subjects. I also got > this > message with 3dt1 data, with 294912, 294908, and 4 bytes > respectively. It > happens when performing fslview, fslmaths, fslstats, fslroi and > mcflirt(I > haven't tried other commands yet). The memory of my Macbook pro is > fine (I > performed memtest), and I have enough free diskspace. The FSL 4.0 > testrun on > Feeds did fine. > > I noticed this when I did a Melodic multi-subject run. It did not > seem to > effect my registrations and other output. > > I do not have this error when I use FSL 3.3 (Redhat) on the same > data. The > data I use is from a Siemens Sonata, and we convert the dicom to > nifti using > the program dicom2nifti, which uses avwswapdim and avworient. This > is done > with FSL 3.3 on the Redhat machine. > > My questions are: > a) what might be causing these errors? > b) how can I solve them? > c) if I may not solve these errors, can I still rely on my Melodic > output, > which seems to be allright? > > Thanks, and kind regards, > > Stefan Roosendaal > Ph.D. student > Amsterdam > > (forgot that last part, sorry). > > > ------------------------------------------------------------------------ --- Stephen M. Smith, Professor of Biomedical Engineering Associate Director, Oxford University FMRIB Centre FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK +44 (0) 1865 222726 (fax 222717) [log in to unmask] http://www.fmrib.ox.ac.uk/~steve ------------------------------------------------------------------------ ---