.MOV File Extension Reference
MOV is the QuickTime File Format, a media container that can hold video, audio, timecode, subtitles, metadata, and editing references. It is closely related to ISO Base Media File Format, but compatibility depends on the codecs and track structures inside the container. Professional cameras and editors may use MOV for high-quality or metadata-rich recordings.
Quick Specification & Metadata
.MOV
Audio & Video
video/quicktime
Apple Inc.
1991
Proprietary / Patent Licensed
Binary Header Data
50 MB – 8 GB
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What is a .MOV File? (Technical Definition & Architecture)
MOV is the QuickTime File Format, a media container that can hold video, audio, timecode, subtitles, metadata, and editing references. It is closely related to ISO Base Media File Format, but compatibility depends on the codecs and track structures inside the container. Professional cameras and editors may use MOV for high-quality or metadata-rich recordings.
Multiplexes video keyframes, audio channels, and subtitle streams into unified packets.
Direct playback acceleration on Intel, Apple Silicon, Nvidia, and Qualcomm hardware.
Dynamically balances bandwidth consumption with high visual and acoustic fidelity.
MOV Binary Structure & Header Specifications
The .MOV format organizes data into validated sequential or hierarchical byte structures. Inspecting the header offset reveals the magic byte sequence 00 00 00 14 66 74 79 70 71 74 20 20 (ftypqt).
- File Signature (Magic Bytes): 00 00 00 14 66 74 79 70 71 74 20 20 (ftypqt)
- MIME Content-Type: video/quicktime
- Payload Structure: Optimized data stream with metadata headers and checksum records.
- Safety Classification: Low Risk – Standard multimedia video container format. Safe to play.
How to Open .MOV Files on Windows, Mac & Android
- 1Primary Application: Double-click or open directly with VLC Media Player.
- 2Alternative Software: Open using Apple QuickTime Player.
- 3File Association: Right-click the file, select Open with > Choose another app, and check Always use this app.
- 1Native macOS Application: Open with VLC Media Player.
- 2Quick Look Preview: Highlight the file in Finder and tap the Spacebar.
- 3Set Default App: Press Cmd + I, expand Open with, select your application, and click Change All.
- 1Compatible Mobile Apps: Download a dedicated viewer for .mov from the Google Play Store.
- 2Cloud Storage: Open through Google Drive, Dropbox, or OneDrive mobile apps.
- 3Online Browser Conversion: Use AnyFileX mobile browser tools to convert the file into universal PDF or image formats.
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.MOV MIME Types & HTTP Server Headers
When serving .mov files over HTTP or configuring REST APIs, web servers must send the official IANA registered Content-Type headers:
| MIME Type Identifier | Standard Usage | File Extensions | Copy |
|---|---|---|---|
| video/quicktime | Standard official MIME type for .mov files | .mov |
# Nginx mime.types
types {
video/quicktime mov;
}
# Apache .htaccess
AddType video/quicktime .mov.MOV Magic Bytes & Hex File Signatures
In digital forensics and file signature analysis, authentic .mov files begin with a standardized magic byte sequence at byte offset 0x00 to verify file integrity and prevent extension spoofing:
Offset 0x0400 00 00 14 66....ftypqt Audio & Video File Format.MOV vs .MP4 (Detailed Format Comparison)
| Feature Metric | .MOV | .MP4 | Advantage |
|---|---|---|---|
| Format Full Name | Apple QuickTime Movie | MPEG-4 Part 14 Video File | Tie / Equal |
| Category | Audio & Video | Audio & Video | Tie / Equal |
| MIME Content-Type | video/quicktime | video/mp4 | Tie / Equal |
| Binary Header (Magic Bytes) | 00 00 00 14 66 74 79 70 71 74 20 20 (ftypqt) | 00 00 00 18 66 74 79 70 69 73 6F 6D (ftypisom) | Tie / Equal |
| Typical Storage Footprint | 50 MB – 8 GB | 15 MB – 2 GB | Tie / Equal |
| Universal Native Support | High / OS Standard | High / OS Standard | Tie / Equal |
.MOV Compatibility Matrix
Supported natively or through VLC Media Player
Supported natively or via Apple QuickTime Player
Supported via open-source tools and command line utilities
Accessible through compatible mobile viewers or cloud previewers
Supported through dedicated mobile apps or cloud viewers
Accessible via web browser applications and Chrome extensions
Recommended Software for .MOV
VLC Media Player
VideoLAN
Apple QuickTime Player
Apple Inc.
HandBrake Video Converter
HandBrake Team
Common Errors & Troubleshooting .MOV Files
Security & Malware Risk Assessment
Can a .MOV file carry viruses or malware?
Standard multimedia video container format. Safe to play.
No active macro execution support
Safe to inspect with AnyFileX's browser sandbox
- •Verify file extension in OS File Explorer options ('Show known file extensions').
- •Verify magic bytes (00 00 00 14 66 74 79 70 71 74 20 20 (ftypqt)) to ensure the file isn't a renamed executable.
- •Do not open .MOV attachments received unexpectedly via email or instant messenger.
Preguntas frecuentes
Respuestas claras a las preguntas más habituales.
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