We are trying to install ESXi and are having absolutely no joy whatsoever.  We have now tried the download and installation on four different computers (two PCs, one running Windows 2000, one running Windows XP, and two laptops, one running Windows XP and the other running Windows Vista).  In all cases, we get through the process as far as the part where you have to insert a CD and click "Download & Install", after which it comes up with a message saying "Downloading and creating ESXi installation media...", and you are asked to select your disc drive and then click "Burn ISO".

There is where it all goes wrong.  On three of the machines, this results in a message saying "not enough space on the drive to burn the file", and on the Vista machine it results in a message saying "Error code 22 returned".  We have tried everything we can think of and have completely run out of ideas.  There is a post on the main VMWare community forum from last autumn about this exact problem, which has never received a resolution (http://communities.vmware.com/thread/229404, for anyone who is interested).

We have tried two different types of CDs (definitely CDs, not DVDs), but both result in the same outcome.

Any suggestions will be much appreciated.