2.1.5 sourceURL
The sourceURL property supports the grouping of results by file system path, which enables a device to group media files by parent folder. For example, the device can return results that enumerate all of the pictures in the "January Ski Trip to Canada" folder.
Note The use of the "ParentID" attribute can provide results similar to sourceURL, but only for a container hierarchy that replicates the file system hierarchy.
At most, one instance of each property is allowed.
The syntax of the property is defined as follows:
PropertyName = "microsoft:sourceURL"; UTF-8
PropertyValue = ALPHA; UTF-8
MMPE = "<" PropertyName ">" PropertyValue "</" PropertyName ">";