The Strangers playback problems

[parkerwilson]

I am having problems playing this in my PS3. I bought the blu-ray through amazon, and when I played it in my PS3 last night I could hear all the sound effects but when they were talking I couldn't here there voices. So my girlfriend calls her mom and she happened to rent the dvd, so we go get the dvd and try it in the PS3 and the same thing happens. So then I put the dvd in the dvd player in the other room and all the audio is fine. Any help would be appreciated.