I just converted some of my FLAC files to AIFF in foobar2000 and then brought the AIFF files into iTunes in OS X to encode as Apple Lossless and about 90% of the 4,000+ files load into Mp3tag just fine, but a few don't... I've tried adding the troubled files individually, isolated in their own folder, etc... nothing will get them to load so I can tidy up the tags and get rid of the iTunes metadata, etc. Now, iTunes sees the files just fine as does foobar2000 (the iTunes converted M4A/ALAC files) and I can even edit the tags in foobar, play the files, etc... but even after editing the tags in foobar, the files won't load in Mp3tag. As far as I can tell, the files in question are completely fine.
Anyone have a similar experience and know of a workaround?