The instance types listed are what is available for the pre-built Wowza servers at this time, though these are under review and may change. If you want to use an instance type that is not listed you can still start one and install Wowza as you would any server.
I’ve reviewed the EC2 instance types recently, and I think the m3.medium may be the better value for throughput than the c1.medium. It is a little cheaper and rated the same for network throughput: “moderate”. And throughput is the usual limiting factor, so that is the right metric to consider for value.
Are you checking for your c1 while in the process of launching the AMI Wowza Streaming Engine 4 BYOL? To be clear, the c1.medium option is there when I am launching any generic AMI but when using the official Wowza Streaming Engine 4 Bring Your Own License AMI I do not see the c1.medium anymore. The only “c” options are c3’s. I will check a few other zones now to see what’s up.
Using the link from your page I was offered the c1.medium option in my region. Thanks!!
I’m going to also use an m3.medium as one of my edge servers to see how they compare. Furthermore, I want to test the c3.large as that looks promising for the $$.