Nintendo UK has confirmed to Eurogamer that the Wii's region locking will extend to GameCube games.
A company spokesperson also said that Virtual Console game releases would not be universal - in other words, European gamers will get European versions of the games.
The news paints a slightly clearer picture of the circumstances surrounding Wii's backwards compatibility in the run-up to the console's 8th December launch.
The console is known to be compatible with all GameCube software, and peripherals including controllers and memory cards, while Virtual Console will deliver titles from systems including NES, Super NES, Nintendo 64, Megadrive and TurboGrafx at the rate of around 10 per month.
In answering our queries, culled from some of your recent forum threads, Nintendo also said that it expects to release RGB and component video cables that fit current pricing models.
It declined to comment on recent reports, supposedly surfacing in Nintendo Power, that Virtual Console will also host Commodore 64 games in future.