If you are planning to use Expression Encoder to encode your videos and audios, now you can all do this using OM of Expression Encoder.

There are three options available

1.       Use Existing Audio and Video profile like VideoProfiles.HardwareDeviceH264Small and AudioProfiles.WmaForZune

2.       If you want to use some custom profiles you can save the profiles and then use them

3.       The Last is when you use presets, which allows you to have the max control on the out put videos/audios..