My son bought me an Apple TV as a gift. Before I can use it I have to convert all of my video to M4V. I can't find a program to do that. I would prefer a freeware but will consider something else if that's all there is. I was told handbrake would do it but all I could get it to offer is MP4 and MKV. Ideally I'd prefer a windows product rather than the proprietary Apple TV. I can take it back but I'd rather make it work if possible.