Most dreams are wmv or mpeg already. Look into %programdata%\Stardock\DeskScapes\ExtractedData. For dynamic dreams, there is this but it only works with free ones (support for commercial ones is still buggy - it will only work for some of them).

Remember that most content is only licensed for private non commercial use. See here for another discussion of that.

You first need to load a dynamic dream with deskscapes (this will extract the contents to %programdata%\Stardock\DeskScapes\ExtractedData).

Then navigate to the ExtractedData directory. There should be 2 dll files (one for 32bit and another for 64bit). The one you want is the 32bit one.

Open a command line prompt and navigate to the ExtractedData directory. Launch nightmares with the following arguments:

Nightmares -i <path to the 32bit dll> -o <name of the AVI file you want to ouput to>

This will load the dream and save the output to a video file. You can also set a different window size (defaults to 800x600). Please note that by default it will store uncompressed frames and will results in a huge file (and I mean huge!). You can optionally pass a FOURCC code (this is used to select the codec to compress the video). What codec is available will depend of the codecs installed on you computer. If you have FFDShow installed, you can pass FFDS and use FFDShow configuration window to adjust encoding paremeters.

I wrote that little utility mainly to test dynamic dreams more easily and the video output was added later as a request, so everything has to be done from the command line and there is no user friendly UI unfortunately. 

Let me know if you need any more help! And I'm curious to know what dream you want to record and why

Did u mean that if i can't load the dream with deskscape, then I can't use Nightmare???

I wan to extract dream because my PC not support Aero, and with no Aero , Deskscape can't run and............dream not able to go to my deskstop. So i want the dream to be convert to AVI so i can put it on my MP4 to enjoy(My MP4 can support AVI....but not dream format)

i didn't found any subfolder or even ExtractedData directory on the deskscape. or maybe i just wait for the Deskscape XP

BTW the few dynamic dreams on Wincustomize mostly have flash previews, so you can work from that.

then can tell me some of these dynamic dream?? Thanks.

Nevermine, I will try to ask my friend for help by lending his PC to extract dream.

And I hope that deskscape for XP will release soon . And thanks for the replies.