Comment 5 for bug 1386542

.flac works just fine. I just tried this file to make sure:
http://freesound.org/people/arseniiv/sounds/259944/

The particular project 'Zakarra-59_Degrees.mmpz' isn't however. It you try a later version of LMMS, say 1.1.3, it will provide you with a pop-up message saying that the samples in question are missing completely. It's not a good thing to have a project that is partly defect but we're going over the projects once in a while and this one is a good candidate for removal.
I'm editing the bug description accordingly.