Mp3s not playing in Safari 6.0

Hi

I've been making some updates to my website today on my Macbook (running an older version of Safari) and everything is working exactly as I'd like. I then came over to my iMac (running Safari 6.0) but it seems the JPlayer didn't work. After some testing it seems the problem is with Safari as it works on both my PC (running IE) and Macbook, the version of Safari being the only change.

I presumed at first it might be an issue with the JPlayer but I discovered even if I just put the mp3 file(s) URL in the address bar it doesn't play there at all.

I see several other people are having this issue but there doesn't seem to be a fix as of yet?