And then I force quit it, only to find it can't resume where it left off, because apparently it doesn't flush anything to disk while it goes, so you have to restart, basically doing it song by song.
It doesn't even matter if it's local disk or network ... this time I rsync'ed it all to the local disk ~/mp3/ to import, and it still hangs.
Do I have to write my own filesystem -> iTunes importer? Has this been done?
Dear Apple, this is pathetic.