Please look at this
 

Does the boot disc and self boot games work with the new white cheap $100 dreamcasts?

k, here is the thing, you have to find out what the year on the bottom of the DC is, if it is before dec 2000 then you should be fine, if it is after that, then you might have some problems. BTW, if you live in america, go buy one at walmart, they will have old ones laying around. :)