If you have the wav file version it will work but you have to rename Library folder to "MAC\bb\RealTracks\LibraryM" for holds to work. If you have the wma files you can batch convert them to m4a with FormatFactory and then you have to copy the STY XT2 ST2 files. That's what I had to do with MACBB 2012.5 don't know about 2013.