M4A Tag Extraction

I'm delighted with Cog's performance so far on the vast majority of my (16GB) music library! The support for various formats is so complete and robust, it provides a very simple user experience.

I recently procured one album off the iTunes music store in M4A format, however, and Cog could not extract the tag information. It plays spotlessly, but it might be nice to have the complete metadata.

Thanks for providing such a nice, simple application!