iPhone and Final Cut exports often arrive as MOV files with codecs that confuse older devices. HandBrake remuxes or re-encodes them into widely compatible MP4 containers.
Open your MOV file
Launch HandBrake and drag the MOV onto the source window, or use File > Open Source. HandBrake scans tracks and lists video, audio and subtitle streams in the tabs below. Large ProRes or HEVC iPhone files may take a minute to analyze — check the status bar before changing settings.
For phone-specific quirks, also read the HandBrake iPhone video tutorial. If your MOV arrived from a screen recording via OBS Studio, audio tracks may need explicit selection before export.
Choose MP4 output
Under Summary, set Format to MP4. Enable Web Optimized if the video will stream from a web server — this moves the moov atom to the file head for faster start playback on the web. Align frame rate with the source unless you have a reason to convert telecine or variable frame rate material.
Match dimensions to delivery needs. Downscaling 4K MOV to 1080p MP4 saves substantial space; see reducing HandBrake output size and the best settings guide for RF targets after you pick resolution.
Video and audio tracks
For maximum compatibility, pick H.264 video with RF around 22 for 1080p. If the MOV contains ProRes or RAW video, you must re-encode — expect longer processing times and consider hardware acceleration for HEVC output. H.265 is fine for Apple-centric audiences; verify Windows targets decode HEVC before committing.
Set audio to AAC and include at least one stereo track. Disable unused commentary or ambient tracks. Codec background lives in our H.264 vs H.265 vs AV1 article. When audio is already AAC, passthrough saves generation loss.
Subtitles
Burn in subtitles only when necessary; soft subtitles in MP4 have limited player support compared with MKV. For multi-language delivery, consider MKV instead or follow the HandBrake subtitles guide for track selection and forced subtitle behavior.
Start the encode
Set destination, add to queue if processing multiple MOVs per the batch encoding guide, then click Start. Verify playback on your target device — old Android phones and corporate laptops are ruthless compatibility testers — before deleting originals. Upload-bound files should meet YouTube export settings if that is the final destination.
Device testing checklist
Before deleting originals, copy the MP4 to the oldest target device in your workflow: a budget Android phone, a corporate Windows laptop without codec packs, or a smart TV browser. Test audio sync on long clips — Bluetooth speakers sometimes mask drift that wired headphones reveal. If a device fails, step down to H.264 Baseline profile or lower resolution rather than assuming the player is broken.
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