A customer service response from Nintendo concerning the Photo Channel update that’s just around the corner…
I can appreciate your concerns regarding the coming changes to the Wii Photo Channel. However, it’s important to note that this is an optional download and is not planned as part of any system updates to Wii. If your Photo Channel currently supports music files in the MP3 format, you can retain this compatibility by electing to not update your Photo Channel to version 1.1.
Additionally, this update will not have an impact on Wii games which use MP3 music files. These Wii games will not be compatible with AAC files and will continue to use the MP3 file format.
Well, I guess that works for me! Thanks to SidePocket for the heads up!