Hi,
if your willing to give it a try you could easily split your raw fif
file in python.
From a Linux machine at MGH do in a terminal:
setenv PATH /usr/pubsw/packages/python/epd/bin:${PATH}
then the following python script should help you do what you want:
-------- beginning of script
from mne import fiff
from mne.datasets import sample
data_path = sample.data_path('.')
fname = data_path + '/MEG/sample/sample_audvis_raw.fif'
raw = fiff.Raw(fname)
# save the first 150s of MEG data in FIF file
raw.save('sample_audvis_meg_raw_part1.fif', tmin=0, tmax=150)
# save the rest in a second FIF file
raw.save('sample_audvis_meg_raw_part2.fif', tmin=150)
--- end of script
if you're lost I can help you tomorrow.
you can get more info at https://martinos.org/mne/mne-python.html
(visible internally only for now)
and if you feel like it the code is public at
GitHub - mne-tools/mne-python: MNE: Magnetoencephalography (MEG) and Electroencephalography (EEG) in Python
Alex