We have had a lot of requests to make DD VE available in the cloud marketplace.
Starting this week, DD VE 3.1 is available on AWS marketplace. No reason to convert VMDK to AMI anymore !
You can try DD VE from the marketplace . A trial license file link is available here
I've launched the latest DDM VE from the AWS Marketplace (twice now), however the sysadmin password is not "changeme" nor is it sysadmin nor the AWS account ID (not sure where I saw that)