Opening/Importing FLAC Surround Files

I’m having trouble opening surround FLAC files in WL. Source files are from here: http://www.2l.no/hires/index.html Anyone able to get these working? I’m converting to uncompressed for a surround demo. If anyone has a source for hi-res surround music files that can be converted directly to wav I’d love to hear about them. Thanks!

Jeff Merkel