I just checked out the Metellica forum. Wow, this is interesting. The fans are definitely not happy with the sound of the mastered CD and are becoming aware of what limiting is. Because of the completely different sound in Guitar Hero the fans have a reference point which they didn't have in the past. Guitar Hero in this case is also hopefully future masters hero for helping to finally kill the loudness wars.
Hey, a music fan cane hope can't he?