To load Synamp1 data, I use EEG = pop_loadcnt(filename, 'dataformat', 'int16'); Can someone please tell me the correct format for Synamp2 data? I thought these data were 24 bit, but I do not believe what I get when I use 'int24'. Thanks, Tom. -- Thomas Ferree, Ph.D. (415) 353-9474 http://dnl.ucsf.edu/users/tferree