"The game has been approved by Nintendo and is currently in manufacturing," publisher Activision wrote in an e-mail to those who had registered for a replacement disc. "We expect to have the replacement discs available in February."
After the game released in late October, it came to light that the Vicarious Visions-developed Wii edition of Neversoft's Guitar Hero III outputted songs in mono, though all other versions of the game were unaffected. Activision later acknowledged the issue and announced that it would provide replacement discs.
To register for a new disc, consumers are urged to visit ActivisionGameExchange or call (866) 780-8286 between 8:00am-8:00pm EST, Monday-Friday.