Yes, you can play .mp4 files with the RadMediaPlayer. You can examine this in the attached solution. Please keep in mind to mark your video file`s Build Action as "Resource" instead of the default one which is "Content".
All the best,
Petar Mladenov
the Telerik team
Do you want to have your say when we set our development plans?
Do you want to know when a feature you care about is added or when a bug fixed?
Explore the
Telerik Public Issue Tracking
system and vote to affect the priority of the items