In the 2.0 update for Convert to FLAC I added support for converting from Apple Lossless Audio Codec (ALAC) files. Part of the process of converting formats involves copying existing tags and metadata wherever possible, and in order to do this with ALAC files I use a separate utility called mp4info. This utility originally came from the MPEG4IP project, but unfortunately that project now seems to be defunct. As a result, I've switched over to the libmp4v2 project, which is still active and provides its own mp4info utility.
Unfortunately, the output from the two versions of mp4info is slightly different. As a result, I had to modify Convert to FLAC to support the new syntax. This change will only affect you if you're trying to convert ALAC files to FLAC. If that's the case, please note the following: