I'm ok with the photo library working but when I get to the Try It Out for Access the Videos in the Photo Library I get a warning on this line:
NSArray *mediaTypes = [NSArray arrayWithObjects:kUTTypeImage, kUTTypeMovie, nil];
The warning is 'Passing argument 1 of 'arrayWithObjects:' from incompatible pointer...'
I get the same error when trying to run the sample code from the book. Haven't figured it out yet.