I have put my subjects through the recon-all procedure and most ended with no errors. But some ended with an error message, after the command line:

mri_diff aseg.auto.mgz aseg.mgz

saying:

zcat: ~/.../mri/aseg.auto.mgz: unexpected end of file mghRead(~/.../mri/aseg.auto.mgz, -1): read error

What is happening?

Thanks!

Joao Pereira