No clue, then. That's just something I read on the forums once and all my sounds are ogg. The windows sound is a default in "failed to read" cases.
But yeah, I'll do a save system. I just didn't have time or want to with game maker(the default save game function was useless in my case). But yes, I've already started importing graphics into unreal, so the remake/better build is sort of underway xD