MAC BOOK PRO 15 - Does this version support Audio 5.1

Hello,
My MBP 15inch is the 1st generation with the INTEL CORE 2 DUO chip.
Here's my Hardware Overview:
Model Name: MacBook Pro 15", Model Identifier: MacBookPro2,2, Processor Name: Intel Core 2 Duo, Processor Speed: 2.33 GHz, Number Of Processors: 1, Total Number Of Cores: 2
L2 Cache: 4 MB, Memory: 3 GB, Bus Speed: 667 MHz, Boot ROM Version: MBP22.00A5.B07, SMC Version: 1.12f5
I am looking to play store bought DVD's on the MBP but have the video and audio go through my home theater setup..
The Song Bravia is connected via the DVI to HDMI cable....Picture works and looks ok.
I have the mini jack to optical cable into my H&K AVR. Sound comes out, but not in 5.1.
The DVD, IRONMAN and others are set up to play 5.1 via Apple' s DVD player - but the receiver doesn't recognize the signal as 5.1. Only PCM Stereo....I have to force it in to PRO LOGIC, which is not true 5.1.
Does this Mac Book Pro support 5.1?
THanks
Art

Hi
Thanks for the reply. It seems I was able to get Apple's DVD program and VLC to play in 5.1. I did more digging and found some forums that had a step by step to get 5.1 to be activated.
I used the digital mini-cable to toslink cable from Monster, but then had to tell DVD or VLC that my output can play the audio from a DVD on digital audio equipment, such as a home theater system that plays 5.1 audio. I went in preference of both programs, while the DVD was NOT playing and was able to select digital output. Once I did this and played the DVD - the H&K receiver changed from PROLOGIC to Digital Dolby 5.1 on the display and the sound was true 5.1 out of the speakers.
Not sure why APPLE doesn't have this documented anywhere; although once I knew where to look I found it in the HELP SECTION of DVD program.
Thanks
Art

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MAC BOOK PRO 15 - Does this version support Audio 5.1

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