With RadMediaPlayer's current version, this scenario is not possible. Soon we will start refactoring RadMediaPlayer. With the refactoring we will try to meet the following goals:
- clean the code. This version of MP is from ver 1.1. of SL and has very little changes since then
- make it more expandable - support for commands, custom buttons, events etc.
- co-operate with the MS new media technologies - as is this media sdk and the SMF.
Let me know if you have additional questions on the matter.
the Telerik team