mIRC is definitely pointing at the right directory, I keep all the sounds in mIRC/sounds (the default). Most are mp3's though there are a few wavs. The method I generally used to play them was via tools/aliases and assigning sounds to F-keys, although the problem persists with the more traditional /sound command. All sound files play fine via windows explorer and media player.
I'm sorry nothing's worked so far. Thanks for the efforts though.
