First of all, thank you so much for implementing DSD support! I had to use foobar to play my DSD files (only 0.5% of my collection, but still :-)).
So, all of my DSD files now show up in my inbox. However, it does not appear as if MB is recognizing the metadata. According to MP3tag, my DSD metadata is in ID3v2.3, but it is not showing up in MB (and is recognized by foobar).
Let me know if I can provide any additional data.