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CPU occupancy is at maximum. It's the same with GPU folding aswell.
I figured that it's the CPU having to feed data and just not being quick enough. If what you read is correct, then it's a pity that such lies/mis-information has been spread.
Disclaimer: Any advice I provide is only applicable in my reality and may need altering to fit yours There is no place like 127.0.0.1  

Best Video Evar! UPDATED
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Maybe it just doesn't figure highly enough on the list of development priorities. I'd be the first to moan if development money was siphoned away from the graphics card's primary purpose and function to achieve something that I can do perfectly well without ATI's help. Bear in mind that none of the MPEG-4 hardware encoders offered by the capture card manufacturers work worth a spit either in terms of quality versus speed when compared to a CPU and software solution, not until you start spending silly money anyway.
Maybe AVIVO encoding will be sorted out at some stage in the near future, but I'd rather have them working on the actual graphics driver personally. It is a graphics card after all. 
Cheers, Slipstreem.
System specs:
"Phoenix" / "The '43' Special" - 1.8GHz Intel C2D E4300 overclocked to 2.83GHz with ACF7Pro HSF on Volt-modded ASRock 775Dual-VSTA mobo (modded BIOS rev 3.10A, VNB=1.65, Vagp=1.8), 1GB Vitesta DDR500 RAM (2.5,3,3,7,1T @ DDR472MHz), Jetway ATI X1950Pro 256MB GDDR3 PCIe graphics card with modded AC Accelero X2 cooler dynamically overclocked to 650MHz GPU & 1.5GHz RAM. Powered by Hiper Type-M 580W PSU. Guess who likes overclocking on a budget. 
MP3 Encoding for Audiophiles
Fun MPEG-4 Encoding Race
MPEG-4 Playback Enhancement Using FFDShow
How good is the Arctic Cooling Freezer 7 Pro HSF really?
Boosting ATI Framerates with CCC (X700 on)
Optimise ATI Image Quality And Framerates With ATT (X1XXX Series under WinXP)
  
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Pentium
   
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True, and it works beautifully in that respect. Maxing out all (except the obvious one).
As you're the only one here, I might aswell hijack me own thread to something you know about.
In Catalyst Control panel, all settings are left to the application to decide. On Adaptive anti-aliasing should the method be Super-sampling or multi-sampling?
While looking through your links to see if that answer was somewhere, I saw that ATT had some Mpeg2 optimisations. I'll have to wait till ATT is more friendly to 4 series cards, but hopefully, it may do something for this very thread.
EDIT: Forgot to say. I'll try a couple of different formats to see if it has a problem with DIVX, or if just generally it's not worth it's weight in Mb.
Disclaimer: Any advice I provide is only applicable in my reality and may need altering to fit yours There is no place like 127.0.0.1  

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FreakShow! (11/07/2008) In Catalyst Control panel, all settings are left to the application to decide. On Adaptive anti-aliasing should the method be Super-sampling or multi-sampling?
Use super-sampling for the ultimate in antialiasing quality that the card has to offer, use multi-sampling for a slightly less precise antialiase with less hit on framerates.
ATI Tray Tools calls the options "Quality" and "Performance", and having tried both at native display resolutions of 800x600 and 1366x768, I can't see enough difference to worry about personally. I've now plumped for "Performance" which equals multi-sampling as the X1950Pro slows down a little in some games with super-sampling at my new native res of 1366x768. You may see a very slight increase in jiggy-jaggies on fine detail with multi-sampling. See what suits your eyes best.
Bear in mind that the algorithms for super-sampling and multi-sampling are tweakable via the driver at the ATI end, so it's worth checking out both on every new driver revision as their relative effectiveness may change in future driver releases. It has done before and I'm sure that it will again as driver developments and enhancements are made for the HD4xxx series. 
Cheers, Slipstreem.
System specs:
"Phoenix" / "The '43' Special" - 1.8GHz Intel C2D E4300 overclocked to 2.83GHz with ACF7Pro HSF on Volt-modded ASRock 775Dual-VSTA mobo (modded BIOS rev 3.10A, VNB=1.65, Vagp=1.8), 1GB Vitesta DDR500 RAM (2.5,3,3,7,1T @ DDR472MHz), Jetway ATI X1950Pro 256MB GDDR3 PCIe graphics card with modded AC Accelero X2 cooler dynamically overclocked to 650MHz GPU & 1.5GHz RAM. Powered by Hiper Type-M 580W PSU. Guess who likes overclocking on a budget. 
MP3 Encoding for Audiophiles
Fun MPEG-4 Encoding Race
MPEG-4 Playback Enhancement Using FFDShow
How good is the Arctic Cooling Freezer 7 Pro HSF really?
Boosting ATI Framerates with CCC (X700 on)
Optimise ATI Image Quality And Framerates With ATT (X1XXX Series under WinXP)
  
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Hi Freakshow! 
Hi Slipstreem 
Your exchanges in this thread are a bit 'over my head', but in case it helps, when Freakshow! first found that HDdemo *.mkv file, I found that the only player that I had that would touch it was Videolan's VLC.
In XP the Feb2008 version 0.8.6e stuttered and lost a lot of frames on my [C] rig and the Ubuntu 8.04 Linux version fared no better, but on my [A] and [B] rigs a different story.
On my [A] rig still stuttering under XP, less so under VHP, but LinuxMint4, no problem, quite smooth playback after a startup pause. Ditto on my [B] rig, where I have just quickly tried loading a LiveCD session of Mint5, going to its software portal and downloading VLC. Result not perfect, obviously dropping some frames, but quite watchable. After posting this 'reply' from my [C] rig Ubuntu8.04, I'll try out its offline XP + VLC 0.8.6e and add a PS to the post. 
Edit PS - using an offline copy of XP, with less overheads, produced a slight improvement, but still massive frame drop. Meanwhile VLC Player at http://www.videolan.org/ is now at version 0.8.6h for Windows, so give it a try ?
If you don't define its File Associations correctly, don't panic, just 'Install', ie 'Uninstall' it again and it should restore the prior situation. (However, for smooth HD playback, try a Linux distro with VLC ?)
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[A] rig..ASUS-EN8500GTS SATA-320+80GB G31MX-S2 2.6GHz E2160 2G
[B] rig..384M_XFX8800GS SATA-320+500GB G31MX-S2 2.9GHz E4600 2G
32-bit Ubuntu 8.04.1/Mint4/Mint5, WinXP & Vista Home Premium.
http://tinyurl.com/MP3-Creation-with-the-Heron
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Media Player Classic runs HD content better as it can use more than one core.
VLC can just about run it, but it's limited to one core.
Encoding a MPEG2 version now. Was going to let it run overnight, but then it crashed for some reason :\
EDIT: Left it to run for an hour and a half. Came back, wiggled the mouse to bring the monitor up and then it locked :\
AVIVO has issues apparently. On the plus side I was able to play what it had converted with VLC and results aren't too bad. Not sure what the eventual filesize would have been though.
Disclaimer: Any advice I provide is only applicable in my reality and may need altering to fit yours There is no place like 127.0.0.1  

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Pentium
   
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FreakShow! (11/07/2008) Not sure what the eventual filesize would have been though.
Pretty huge I'd expect. SD content (720x576) in MPEG-2 requires 6Mbps to maintain commercial DVD quality. By simple extrapolation, HD content at 1920x1080 would probably require roughly five times this (~30Mbps) to achieve the same level of quality in MPEG-2.
I've been experimenting with transcoding an HD WMV file (1440x1080) to XviD MPEG-4 with MediaCoder, and the results look almost passable to me personally from around 6Mbps upwards on a single-pass encoding. Most of the detail is still present although there are visible signs of solarising in places. I followed this with a two-pass encoding at the same bitrate and find it much harder to tell the transcoded file from the original on the hardware I have. Detail is preserved with much better accuracy than by a single-pass encoding and solarisation is almost eliminated completely. This would be an acceptable bitrate for me personally for home HD MPEG-4 archiving. A single-pass 90% quality-based encoding turns out a slightly higher level of clarity compared to two-pass encoding at 6Mbps but without the encoding time overhead of a two-pass encoding, so this would almost definitely be the one I'd go for.
Resultant filesizes from 1min 45secs test source file...
6Mbps single-pass = 73MB,
6Mbps two-pass = 75MB,
90% quality-based = 77MB (variable dependent upon source material).
As you can see, they all work out at roughly 2.5GB per hour, so most typical 90 to 100-minute movies would fit onto a single-layer DVD-R in two-pass mode. Quality-based mode is less predictable as the filesize relates to content complexity so varies quite considerably in size. Single- or two-pass modes offer a fixed and predictable size-per-minute in terms of final filesize with variable quality whereas quality-based mode offers a fixed level of quality with an unpredictable final filesize. If target filesize isn't critical then quality-based mode is always preferable to the fussy.
It's only turning in an encoding speed of around 12FPS even in single-pass mode though (two-pass is around 8FPS), despite apparently using both cores of my C2D almost fully, so this does make you realise that it's simply not possible to encode/transcode HD content quickly and properly, especially if you expect to keep the filesize down to be comparable with SD DVD content.
Carrying the maths a stage further, to achieve a figure of 30x real-time encoding for HD content whilst maintaining the same level of quality that can be achieved using a CPU and the XviD codec in two-pass mode would require either two C2D cores running at around 250GHz or one core running at 0.5THz. It's not going to happen with AVIVO and a GPU running at less than 1/500th of that speed.
Having said that, I can believe the claim of 30x real-time with single-pass encoding at the native resolution required for smaller portable devices with the accompanying large drop in image quality that can be tolerated on a smaller screen at a normal viewing distance. A bitrate of as low as 300Kbps in single-pass XviD MPEG-4 can produce watchable results for a 2" screen with a native resolution of 320x240 according to my own personal experimentation. 
Cheers, Slipstreem.
System specs:
"Phoenix" / "The '43' Special" - 1.8GHz Intel C2D E4300 overclocked to 2.83GHz with ACF7Pro HSF on Volt-modded ASRock 775Dual-VSTA mobo (modded BIOS rev 3.10A, VNB=1.65, Vagp=1.8), 1GB Vitesta DDR500 RAM (2.5,3,3,7,1T @ DDR472MHz), Jetway ATI X1950Pro 256MB GDDR3 PCIe graphics card with modded AC Accelero X2 cooler dynamically overclocked to 650MHz GPU & 1.5GHz RAM. Powered by Hiper Type-M 580W PSU. Guess who likes overclocking on a budget. 
MP3 Encoding for Audiophiles
Fun MPEG-4 Encoding Race
MPEG-4 Playback Enhancement Using FFDShow
How good is the Arctic Cooling Freezer 7 Pro HSF really?
Boosting ATI Framerates with CCC (X700 on)
Optimise ATI Image Quality And Framerates With ATT (X1XXX Series under WinXP)
  
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