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junko...
Windows has a utility that might help you understand the time factors better. Do Ctrl-Alt-Del >> Task Manager >> Performance. This will launch a real-time read-out of CPU and memory usage.
Launch this prior to "Open Disc." When "Anaylising" begins, which is about a 2 minute process, CPU is 50 to 100%. Once you start Deep Anaylsis, you will see CPU usage jump to 100%, and remain there throughout encoding. The major exceptions to this are not enough enough memory (RAM and/or Virtual/page file) or a CPU heat problem. The read-out will show you that you are fine with 512RAM. It does not give a direct VM/page file usage, and this has to be interpreted. The best thing to do is to just change it to where you know it will be adequate. I recommend 4000MB min & max for the drive seeing the file. This will increase the efficiency of the info transfer process.
The "bottle neck" as you can see is the CPU. There isn't a plug-in that can make it go faster. Only overclocking, and that's another story. So, if you want to reduce the time, you will need a faster CPU or multiple computers.
As far as how deep analysis works, there are special alorithms developed to "steal" space from the B and P frames to "shrink" them. The I frames are left intact. Once enough data is removed from a DVD-9's I, B, or P frames, its image will then fit on a DVD-5. Just exactly how these algorithms are designed to steal space and still yield a quality image is a well-kept secret.
Concerning burn time, look at the CPU usage again. It will likely be less than 15%. The bottle neck here is the write speed of the burner/media combination. 12 to 16 minutes is normal for 4X media.
Next to the Perfomance tab is the Processes tab. This will tell you what else is running in the background. These other programs can steal CPU and memory, so turn them off to optimize encoding.
As a final note, we depend on our computers to do a lot of things. The most demanding is processing video files. To really understand this, next time you have a doc to type, check out the CPU usage...you might get a 5% peak value!!!
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I am always doing that which I can not do, in order that I may learn how to do it. (Pablo Picasso) This message has been edited since posting. Last time this message was edited on 30. July 2004 @ 12:16
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