Playing DVDs in 5.1 With Firewire Audio Interface Connected for Logic Pro

This is exactly the same q as asked by plantwebguy in July 06, link
http://discussions.apple.com/message.jspa?messageID=2696970#2696970...
I'm struggling to get an answer on this anywhere... I have Logic Pro running 5.1 Surround Mixes on a g5, using a Metric Halo Mobile IO Firewire audio interface - its 6 analog outs are connected to a M Audio LX4 powered surround system. It all works great - until... the problem is when I need to listen to DVDs with 5.1 soundtracks (for reference), or even HD trailers (with 5.1 soundtracks). With the Mobile IO selected as audio interface, DVDs only play in stereo. I think this is because the 5.1 soundtrack is only output thru the optical out - but connecting the optical out to the Mobile IO and selecting 'Digital out' on the g5 brings silence.. Im told this is because the MIO's optical in wont decode 5.1. I'm interested to hear from anyone with a Pro Audio interface - like a MOTU etc - who needs to switch between mixing their own music in 5.1 and then listening to DVDs in 5.1.. I cant be the first, surely?
Plantwebguy said he solved his issue with VLC. Do we know if VLC willl decode 5.1 and then output it to the Interface via Firewire? I've searched the net for a Pro Audio interface with (1) 6 analog outs & mic inputs etc (2) firewire connection and (3) optical in that reads AC3/5.1 etc (rather than just ADAT).... nada. Sorry to be long-winded but I cant get a solution anywhere..
Thanks in advance
g5 dual 2.5 Mac OS X (10.3.9) Logic Pro/Mobile IO 2882 FW Interface/M Audio LX4

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Greetings to all of you,
Dorsch.

Check out this thread here:
http://discussions.apple.com/thread.jspa?threadID=1656583
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This is a very good point! Thanks for your response.
I do realize that I have multiple volume controls going on here in a chain. First my computer, then the Firebox interface, then my speakers have volume knobs...
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It seems that when I am pressing the volume on my computer it is activating something on the mac's end... or changing the way the sound is being output.
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In Audio MIDI Setup (In applications/Utilities) the setting for my Mic is 44100khz 1Ch 16bit.
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4:25 PM Friday; September 7, 2007

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PreSonus FIREBOX 24-bit/96kHz FireWire

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Thomjinx wrote:
If yeloop is using BFD, then direct monitoring isn't going to help him. That is for audio in.
Exactly.
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Sorry for the double post.
Message was edited by: mlehmann

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Playing DVDs in 5.1 With Firewire Audio Interface Connected for Logic Pro

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