I need help with Emulating Dreamcast

I really want to play Soul Calibur for Dreamcast, but I have no idea how to run Dreamcast. Its my first time using a Dreamcast emulator.
I'm using Chankast, I can't seem to open the CDI. It says I don't have enough free blocks and it says I have 0 blocks. I downloaded Soul Caliber from here.

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try nulldc, I believe that is the most compatible DC emulator.

Ok, thanks

Theres a problem, its need a bios...

Use google and search for a bios.Most emulators are distributed without bios files, and leave it up to the user to find them.

Yeah i think they do that because the bios is somehow illegal.

Replying to #7

it's copyrighted to the console manufacturer, thats why.

YES! Victory!