Any loading or fatal errors that have occurred in the resource
Determines if the resource is fully loaded
Determines if the resource is currently loading
Determines if the resource has been unloaded and is now invalid
The location that the media was loaded from. Can be a local resource with file:// scheme
Releases the resource. Is reentrant, a released resource can be released again without error. Will possibly set
unloaded to true, however, it is not required to.
An interface for media resources