Yes, i am also having the same problem, tryed to play it on 3 computers plus a Dvd player, but still wont work, it lags my computer for awhile,I played on Dell XPS 420 Wont work for some reason, Dell XPS 1330 a laptop, it wont read and inspriron 1530 wont work either, and when i played it on my DVD player it gives me an error ><, i was waiting for all these weeks just to get a hold of GSD vol 12 >_>