Can't play Wavpack files!

[TheBlind]

I've created some .wv files with Max and I can play them with Cog. I've installed first the last unstable and then the last stable Play release, but I can't play those files. When I try to add them into my library dragging or using the shotrcut shift+o nothing really happens. Just an animation of the Play icon in the Dock, but nothing more...
some one can help me?

Thank you!

[TheBlind]

Here's my system spec:

MacBookPro with Intel core 2 - 2.16GB
OS: Leopard 10.5.1
Ram: 2GB

I can play mp3 without problems but not .wv.
The same .wv files are easily accepted by Tag and Cog without problems.


Hope in a help.