GP- So whats your CPU load and which disk?
Also is BR all you plan to do?
Motherboard: ECS A780GM-A 780G chipset
Processor: AMD Athlon 4050e Processor
RAM: 2GB DDR2-533 RAM (if I remember right)
Hard Drive: WD Green Power 750GB 5400-7200 RPM
Graphics: On-board Radeon HD 3200 (256MB shared memory)
Windows Vista Ultimate with Aero turned on
Software: PowerDVD 7.3 (Aero turns off by PowerDVD when playing Blu-Ray)
Movie: Chronicles of Narnia: The Witch, The Lion, and The Wardrobe (Blu-Ray)
Audio Selection: Uncompressed Audio
Chapter Testing: They're After Us
Hardware Acceleration: On
Memory: 981 MB Used
CPU Usage: 29% to 55%, 40% average, lowest dip: 24% (dipped only once), highest peak: 68% (peaked only once for the second time of watching the chapter)
Hardware Acceleration: Off
Memory: 982 MB Used
CPU Usage: 28% to 60% (although it doesn't really hit the lows or highs that much), 42% average, lowest dip: 25%, first highest peak: 78% (didn't occur for the second time I watched the same chapter)
Summary: I'm not sure if I made a fair comparison, but hardware acceleration or not, I did not see any effect of the CPU usage, which I might be thinking that it's done by the unified video decoder. A little bit of CPU drop might help with the hardware acceleration turned on. This is with video almost maximized since I only have one HDTV to see my CPU usage.
I might try out H.264 AVC HD video to see how well the 780G chipset can do.
And I've got to wonder: How can GeForce 8400 does not support H.264 AVC HD video codec?