When I first stuck the disk in I got the "for non-midified players only" screen on my Techtronics modified 717. Couldn't shake it. Worked out how to fool it though. Put in another R1 disc and press 'play', eject the disc and put in the RCE disc and press 'play' on that followed by 'menu' as you can. SORTED!!! Hollow Man plays fine. Hope this helps anyone struggling. Maybe it works with other players too?