MPMediaItem *mediaPicked;// set mediaPicked to an MPMedia item using MPMediaPickerController...NSLog(@"id as number: %qu", [mediaPicked valueForProperty:MPMediaItemPropertyPersistentID]); // outputs 566042331449280NSLog(@"id as string: %@", [[mediaPicked valueForProperty:MPMediaItemPropertyPersistentID] stringValue]); // outputs 16204893883745507648NSLog(@"id as number: %qu", [[[mediaPicked valueForProperty:MPMediaItemPropertyPersistentID] stringValue] longLongValue]); // outputs 922337203685477580
