[Freesurfer] mri_convert WARNING: files are not found to be different and cannot be sorted and cannot fit in 256^3 mm^3 volume.

Dear FreeSurfers,

I have imported several dicom files with recon-all -i -subjid id. All files were imported correctly, apart from one subjects. When I try to convert it direcelty with mri_convert -ot mgz dicom/9999/1.dcm -s 9999

I get this error message.

WARNING: files are not found to be different and cannot be sorted File1: ../../../../dicom/9999/162.dcm File2: ../../../../dicom/9999/2.dcm

When I process the subject with recon-all -s 9999 -all. I got this message.

WARNING ==================++++++++++++++++++++++++======================================= The physical sizes are (240.00 mm, 240.00 mm, 384.00 mm), which cannot fit in 256^3 mm^3 volumes. The resulting volume will have 384 slices. If you find problems, please let us know (freesurfer@nmr.mgh.harvard.edu)

Can you please advise me how to import the dicom files? Should I convert them to nifti. Will this affect the end results compared to the other subjects that were imported correctly?

Knut J