MPEG-4 video up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats.
Motion JPEG (M-JPEG) up to 35 Mbps, 1280 by 720 pixels, 30 frames per second, audio in ulaw, PCM stereo audio in .avi file format.
You may be confused that why some MP4 files can be transferred to ATV, however, others .mp4 files fail. In the case, you need to iOrgSoft MP4 to Apple TV Converter, which can convert MP4 to Apple TV compatible-format MPEG-4 with no quality loss. The application is specially designed for solving any file incompatibility issue with Apple TV. It provides an easy-to-operate interface and all the conversion task can be done with several mouse clicks. If you are a Mac user, please refer to its Mac version-MP4 to Apple TV Video Converter for Mac.
Step 1: Download and install the MP4 to Apple TV Video Converter
Step 2: load .mp4 video files into the program
Click "Add" button to add .mp4 files to the Apple TV Video Converter. Note: The Apple TV video converter is also allowed to edit video as well. You can do some practical video editing jobs like video trimming, video cropping, etc.
Step 2: Choose "Apple TV video" as target file format
Click the drop-menu of "Profile" and select Apple TV .mp4 video output format.
Step 3: Run the MP4 to ATV video conversion
Hit "Start" button and let the MP4 to ATV Video Converter start converting job.