The preloaded scans are I imagne to show what it does but yes I said same thing at first. Easily delete them. I have my 2006-2012 brain & cervical MR's on mine now. Going for Tysabri in a few min, will bring & show, pass time looking at lesions.

One request i'll make to co is have default for brightness/contrast switched to movement cause it's a pain sliding through images when you bump button. I use iPod which is tiny.