Whenever I play Blu-rays on my BDP-S370 the audio levels are incredibly low, this is not a problem when playing DVDs or Internet content...

My BDP-S370 is connected to a Sony 32EX503 via a Sony HDMI cable.

I watched 'Harry Potter: Half Blood Prince' on Blu-ray the other day and whilst I watch most content at 20, I had the volume at 80 so I could hear it...

Can anyone help, I've tried changing audio settings but nothing seems to change it and it is connected to the internet and updated.