First bad thing to happen
I was about to play Trauma Center: Second Opinion for the first time. After I put the game in the console, the game title appeared normally in the Wii channel screen.
When I tried starting the game, it sounded like the system was having a hard time loading the disc. (It was scanning, repeatedly and louder than normal.) After about 30 seconds, it game me an error screen.
I forgot exactly what it was. So I ejected the game, restarted the system, and tried again. The second time, it loaded up perfectly. I hope this doesn't happen more often. I was wondering if this has happened to anyone else.