OnTrack has expanded their services with aim at VMWare, giving their customers another gift with the addition of some new data recovery tools. These new tools are aimed specifically at virtual machines, intended to help people recover from virtualized disasters. The adoption of virtualization has presented challenges, including what exactly should be done when you have corrupted or missing data inside a virtual machine. Sometimes standard tools work, but many times they don't - and OnTrack has sought to fix that problem.
They don't specify whether or not their software can retrieve data from a VM outside of the VM itself, though on the surface that seems unlikely - you usually must access a virtual disk through the hypervisor or console.