(If your OS X is configured not to open apps that are not downloaded from the AppStore, right-click the MPEG Streamclip application icon and choose 'Open' from the menu.) In the Save dialog, choose 'MP4' from the drop-down menu. mov file with MPEG Streamclip and choose File > Save as… (Cmd-Shift-S). Just don't use any other download site.) Open the. If the Inspector shows H.264 and AAC, download the freeware tool MPEG Streamclip from (It's a long-standing, malware- and adware-free application. mov file in QuickTime Player and press Cmd-i to bring up the Inspector window. So, first check what video/audio codecs (compression formats) were used: Open the. mp4 container file without re-compressing the video/audio data itself. Instead, you can rewrap the contents into an. In this case, you don't need to 'convert' (transcode) it, as this process would compress the video data again adding generation loss because of the lossy compression methods used by the H.264 and AAC codecs. mov file may already be compressed with H.264/AAC codecs.

mp4 files are usually expected to have the video track encoded in the H.264 compression format, and audio track in the AAC or the MP3 format.ĭepending on the original creator application settings, the video and audio in the. mp4 file for sharing or playback on player devices. What you have to take into account is the encoding format of the video and audio data contained in the file.

'.mov' and '.mp4' just refer to 'container file formats'.

Mov file