So, you've been playing Spore, and got to the space stage, only to find that all your planets and system are called BAD_DATA. Great!
This only seems to happen on the English version of the game, and only from 1.04 onwards. It is a problem where the game hasn't created the namegeneration package, so can't generate names properly.
Note: If you have saved the game in the space stage this will not help, as the game has already attempted to generate names for planets and failed. So you might have to start a new game.
1. Install the game from the dvd, and any add-ons and expansion packs if you have them.
2. Download and install the 1.05.1 patch:
Mirror 1: http://www.megaupload.com/?d=PXMQEH8E
Mirror 2: http://www.4shared.com/file/omU_AKqa/spore_dd_patch_all_v5_1.html
3. Go to C:\Program Files\Electronic Arts\SPORE\Data\Locale\en-us. In there is a file called NameGeneration.package, copy it and paste it to C:\Program Files\Electronic Arts\SPORE\Data\Locale\en-gb
This should stop the problem from happening.