Contact support
Email support@jiangfinance.com for product help, accessibility feedback, privacy questions or App Review contact. This mailbox is monitored by Jiang Finance.
- DEVELOPER / PUBLISHER
- Zhiyuan Jiang (Jiang Finance)
- SUPPORT EMAIL
- support@jiangfinance.com
- VERSION
- MediaFold 0.3.0 (5)
- PLATFORM
- macOS 14 or later
Open a file
Use File → Open File…, drop a file on the player, or Open With from Finder. MediaFold reads the file you chose. It does not copy, move, or delete the original.
Library folders
File → Open Folder… (or Folders → Add) asks macOS for access. MediaFold stores a security-scoped bookmark on this Mac so it can scan again later. Remove the folder in the app to drop that bookmark. Originals stay where they are.
A file will not play
- MP4 / MOV with H.264 or HEVC and AAC usually play through the system decoder.
- MKV needs the bundled LGPL FFmpeg demux libraries inside the app. If they are missing, MediaFold shows an explicit error instead of a black window.
- Dolby Vision, Atmos, TrueHD, Dolby Digital, and DTS tracks are not decoded. MediaFold tries another audio or video track, or shows a red error. That is expected.
Subtitles
Same-name sidecar .srt / .ass files next to the movie can overlay. MediaFold 0.3.0 renders ASS layout and styling with pinned libass 0.17.5, using embedded fonts, system fonts, and fonts in an authorized media folder. Plain-text subtitles remain available if rich rendering cannot start.
Professional playback
MediaFold 0.3.0 adds chapter navigation, on-device timeline previews, current-session A–B repeat, and ordered BCP-47 preferences for audio and subtitle tracks. Timeline previews use a bounded 300 MB cache inside the app sandbox.
Open-source components
The app dynamically links an LGPL-only FFmpeg 7.1.1 build and FriBidi 1.0.16. Exact license texts, source revisions, SHA-256 values, and build flags ship inside the app. Corresponding source is available from the exact archives used to build this version:
- FFmpeg 7.1.1 source — SHA-256
733984395e0dbbe5c046abda2dc49a5544e7e0e1e2366bba849222ae9e3a03b1 - FriBidi 1.0.16 source — SHA-256
1b1cde5b235d40479e91be2f0e88a309e3214c8ab470ec8a2744d82a5a9ea05c
Email support@jiangfinance.com for the exact corresponding-source package or rebuild records for the binaries in this release.
Window size
Double-click the picture to fill the screen’s usable area (menu bar and Dock stay). Press F for macOS fullscreen. Double-click again restores the previous window size.
Privacy
MediaFold does not collect personal data and does not upload your library or media. Read the MediaFold Privacy Policy.
Include MediaFold 0.3.0 (5), your macOS version, Mac chip type, container/codec if known, and a screenshot that does not show file paths or other people’s faces if you can avoid it. Do not send Apple ID credentials, verification codes, payment details or private keys.