During the last few weeks, emmea90 has been busy converting a huge load of stages to make the mcompatible with PCM 16. He released them in the last few hours, and I'm talking about an entire pack containing all the WT variants of the seasons going from 2010 to 2015. You can find the download, as well as further information, here.
Note that you need to download a different pack for each season for now, but an entire pack containing all of them will be available roughly the next week.
UPDATE: It has now been updated!