VMware released its virtual to virtual (V2V) tool for converting virtual machines formats between different platforms it offers and some 3rd party solutions.
This new version (build 30557), available for free, introduces several new capabilities:
Import from Various Third-Party Formats and VMware Products
* Microsoft Virtual PC and Virtual Server
* Symantec Backup Exec System Recovery images
* VMware Workstation 4.x virtual machine (compatible with VMware GSX Server 3.x)
* VMware Workstation 5.x virtual machine (compatible with VMware Player and VMware Server 1.0)
* VMware ESX Server 3.0
* VMware VirtualCenter 2.0
* VMware ESX Server 2.5.x (when managed by VirtualCenter 2.0)
Export to a Virtual Machine for VMware Workstation and Datacenter Products
* VMware Workstation 4.x virtual machine (compatible with VMware GSX Server 3.x, ESX Server 2.5.x)
* VMware Workstation 5.x virtual machine (compatible with VMware Player and VMware Server 1.0)
* VMware ESX Server 2.5.x (when managed by VirtualCenter 2.0)
* VMware ESX Server 3.0 (when managed by VirtualCenter 2.0)
* VMware ESX Server 3.0 (standalone)