Definition: In this task you're given a question and you have to paraphrase the question to create the output question while retaining the meaning of the original question.
Input: I rented a movie on Google Play, but it keeps displaying a 'Video Format Not Supported' message. Any assistance?

Inserted a m4V movie using the video tag. Plays in chrome and Safari but not in Firefox. I get no error message saying that it is not supported. Just a gray box. Any ideas why?