Problem with some famicom roms on Nestopia...?

[NorseChief]

I am trying to run a famicom rom on the Nestopia emulator and I keep on getting the message, "please set B". Wtf does that mean? And I am using a fds bios to run this famicom rom on Nestopia. How do I "Set B" so I can actually play the game?

[fantsu]

disc game? change the side.

[NorseChief]

disc game? change the side.

What do you mean by changing the side?

[blindell]

What do you mean by changing the side?

I had to figure this out myself as well. First, be sure the bios for the disk system is set correctly. Start Nestopia, then select the machine tab at the top, go to the external tab, click disk system, then options. Set the bios there, it cannot be zipped or rared. Now, start any disk rom. When you are prompted to switdh to side B, go back to the machine tab at the top, select external tab, then disk system again. You will see change side is now available. Or, just hit (SHIFT+B). Most likely you have already figured this out, but I found this thread by googling my problem when I didnt know either. So, this may help others as well.