Did you install IOS 249 Rev 14, or Rev 17? SSBB will require Rev 17, which has dual layer support. What usually happens (and yes, I'm speaking on the softmod side of things) is you play the initial match, and then it gives you the disc error/please remove disc message. Your error sounds different, however. Since you have the softmod also done, can you google signcheck wii and install and run via HBC? Generate a report of IOS installed (it will save as a .csv file on the root of your SD card) and open it via notepad, then copy'n'paste the results in a reply?