dreamcast on playstation 2
 

i was wonder if there a boot disc or something that allows me to play my old dreamcast games on my pS2.... because i have like 200 dc games that i was just gonna go throw away

You must be pretty ignorant with regards to emulation and technology, but the short answer is no. The PS2 is in most ways technically inferior to the Dreamcast, so the idea of running DC software on a PS2 is laughable.

You can try Chankast though.