I don't know a lot about the specifics but have recorded some EEG data with
Axotape,(Axon Instruments) and then analyzed with a program from a company
called Run Technologies (program is Data PacII). If you are interested
I could at least give you #s and addresses for these two companies.
My e-mail address is pagem at hal.hahnemann.edu Yes, the storage requirements
can be a problem. We recorded our data on tape and played back segments
of interest to the PC for analysis.