I have recently purchased the Planes movie so my son can have it on his iPod Touch. It has downloaded to my iTunes account but will not sync with his iPod. I get the error message ( "Planes" was not copied to the iPod ... because it cannot be played on this iPod ) He has 5.83 GB free. I have tried different USB ports and hubs. We have been able to install multiple other movies and play them just fine.