bigdog

I wouldn't place them in the fridge or freezer. Room temperature should be fine, but just remember that the longer the seeds are stored, the more difficult it is to get them to germinate (typically...there are exceptions). Once the moisture content of the seed has dropped to about 10-12%, it can be difficult to imbibe the seeds. You just have to soak them longer, making sure to change the water every day.

I think I've read somewhere that prolonged exposure to cold temperatures will kill the embryo of Musa seeds (but please don't take my word for that, I'm not positive).