Redream supports "everything" : GDI, BIN CUE, CHD and CDI
https://redream.io/help
Unstable versions are more advanced .. but unstable, sometimes...
You don't need a bios , it's already included. Install the program, download some Dreamcast images and play.
Oh and of course, use a joypad with it. I use an Xbox one controller but an Xbox 360 controller (or compatible...) is ok too !!
check the link and read .. it's really easy (and English is not my mother tongue... )