Software Decoding vs Hardware Decod

I know this has been brought up in several other threads previous to mine (http://forums.creative.com/creativel...y.id=605#M2688) but so far, I haven't found out the answer to my questions. So, maybe if the moderators could participate in this topic as well, that'd be great.
I currently have a SoundBlaster Li've 5. X-Gamer and I just recently got Logitech X-530 speakers. I'm playing a movie, and I'm absolutely amazed how much better it sounds with a 5. system. I was using Power DVD 6.0 to play this movie and it was set to 6 channels, so I think this was <EM>software decoding</EM> and not hardware decoding. Or am I wrong? Anyhow, my question is as follows:
) What is are the differences between software and hardware decoding?
2) To use hardware decoding on my SB Li've 5., how do I enable it's
3) I'm not using a receiver, so is this really Dolby Digital?
Thanks for reading this.

"but so far, I haven't found out the answer to my question"
read the stickies.
"I was using Power DVD 6.0 to play this movie and it was set to 6 channels, so I think this was <EM>software decoding</EM> and not hardware decoding"
You're right
"What is are the differences between software and hardware decoding? "
CPU usage
"To use hardware decoding on my SB Li've 5., how do I enable it's"
read the stickies: be sure that your SPDIF setting is set to decoding and set your DVD software audio output to SPDIF.
"I'm not using a receiver, so is this really Dolby Digital?"
Dolby Digital is sound format as any other, so no relation with a receiver.

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Message Edited by Zaim on 0-3-2009 06:0 [email protected]

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pcm.!default {
type hw
card 1
device 9
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