http://blogs.msdn.com/deanro/archive/2008/12/12/metadata.aspxWhen encoding files using the Expression Encoder SDK, you may find there are times when you want to examine the current metadata and/or change the metadata on the file you’re creating. Let’s say you want to go through all the metadata items on an item,en-USCommunityServer 2.1 SP1 (Build: 61025.2)