Povl H. Pedersen wrote:

....
You need to be running Windows XP 64-bit edition (360 days demo from MS)
and get a TMPGEnc compiled for AMD64 to get the big gain.

The WinXP 64bit is not a Demo - it's a Pre Release Edition:
http://www.microsoft.com/windowsxp/6...ds/upgrade.asp
and there are not yet many drivers for this OS available.

rc