I got tired of playing chanka with the blue, PAL dreamcast bios in spanish. A quick look into the files revealed how to change this setting. Thought I would share this info. First, get yourselve a hex editor, like xvi32. Next, open up the dc_flash.bin file in the hex editor. Search down through the file for "211Dreamcast" (its about 4/5 of the way into the file, just before a list of the japanese developers' names). Change that 211Dreamcast to 121Dreamcast. That string appears twice. It worked with just one changed, but its probably a good idea to change both instances. That's it, it'll be the normal NTSC bios now! I assume you can also change it to other languages by changing that second digit to other numbers. Feel free to play around with it. I also found where the time and date were stored, but when I changed it, Chanka just reset it back oh well