MOV
MOV is a video container format created by Apple for its QuickTime framework, used to store video, audio, timecode and metadata in one file. iPhones and Mac editing tools save video as MOV by default. MOV is closely related to MP4, and it often carries H.264, H.265 (HEVC) or Apple ProRes video.
Why it matters
Every iPhone recording can arrive as MOV, often with HEVC video that some Android phones and browsers cannot play. A platform that serves MOV files as uploaded will see playback failures. Converting MOV on upload keeps videos watchable for every viewer. (Confirm MOV/HEVC input before keeping on this page.)
How it works
- A camera or editor stores video, audio and timecode as separate tracks inside a MOV file.
- Each track sits in a labeled block called an atom, with an index describing where frames are.
- Video tracks usually use H.264, HEVC or Apple ProRes, depending on the device and settings.
- Platforms read the MOV, then transcode or remux it into formats every device can play.
Is MOV better quality than MP4?
No, MOV is not better quality than MP4 by itself, because quality depends on the codec and bitrate, not the container. A MOV holding ProRes looks better than an MP4 holding low-bitrate H.264, but the same H.264 stream looks identical in either. MOV is preferred in Apple editing tools, MP4 for sharing.
How do I convert MOV to MP4 without losing quality?
You can convert MOV to MP4 without quality loss by remuxing, which copies the existing streams into a new container. This works when the codecs are allowed in MP4, such as H.264 or HEVC with AAC. ProRes video usually needs re-encoding to H.264 or HEVC to play widely.
Why do iPhone videos not play on Android or Windows?
iPhone videos often fail on other devices because they are recorded in HEVC (H.265), not because of the MOV container. Some older Android phones, browsers and Windows setups lack HEVC decoding. Converting to H.264, or encoding for adaptive streaming, makes the video play almost everywhere.
Where it's used
Creator apps and social platforms receive MOV files from iPhones and convert them for Android and web viewers. OTT teams also receive high-quality ProRes MOV masters from editors and post-production houses.
By the numbers
- Apple first released the QuickTime file format, which MOV files use, on December 2, 1991, and ISO later approved it as the basis of the MPEG-4 file format. (QuickTime File Format (Wikipedia))
