Probably The way to sorta tell is to select it and have it play. If it plays right away, it's stored on the drive. If it takes 15-30 seconds or a minute to two to buffer, it's NOT on the drive and is re-streaming it. If that's what happens, it's just a 'link'.So what is showing up in "MY Rentals"? Is it just a link to that show or movie?
I actually think there's copyright aspects related to "streaming" vs other viewing methods. With streaming licensing, the owners of the movie or whatever basically forbid the show to be stored.