mne-tools/mne-python — pull request #419 by Eric89GXL (2013-01-31 02:36:00+00:00)
Title: ENH: Adding raw.save() format options and overwrite protection

As requested on the MNE mailing list.

I set the default to be float32 ('single'), since that's what it was before. 'double'/float64 doesn't work with MNE command-line tools, so I think this is the best choice.