Questions about spinning bits.

mPLAY is an experimental Mac-native multimedia player being prepared for limited testing with legally owned disc images and disc folders. The alpha focuses on playback, menu navigation, subtitles, audio, performance, and unusual format behavior.

General players often focus on a single video stream. mPLAY is being tested against fuller disc structures: menus, branching playlists, subtitle streams, audio-track switching, and bonus content. Some advanced menu paths are experimental during alpha.

The first alpha is intentionally limited to macOS so testing can stay focused. Apple Silicon and Intel Mac behavior are both useful, especially around display output, audio devices, and performance.

The first private alpha is expected to test DVD-Video, Blu-ray, UHD Blu-ray, HD-DVD, Video CD, ISO files, and disc folders such as BDMV, VIDEO_TS, and HVDVD_TS. Support varies by build and some features may fail during testing.

Standard ISO 9660 / UDF images and common disc folders such as VIDEO_TS, BDMV, and HVDVD_TS are useful test cases. Do not submit or share copyrighted disc images or movie files with mPLAY.

That is one of the reasons for the alpha. Home-authored discs, archival images, and unusual but authorized test media can be especially helpful for compatibility work.

Some HDMV and BD-J menu behavior is part of the alpha test surface. BD-J support currently uses bundled experimental compatibility components, so menu behavior may vary by title and build.

HDR behavior is an active testing area. Apple Silicon Macs, XDR displays, HDR external displays, SDR displays, and different audio setups are all useful for alpha feedback.

External playback and AirPlay setups are useful to report, but alpha behavior may change between builds.

Windowing, full-screen behavior, Picture-in-Picture, and Stage Manager interactions are all useful macOS alpha test areas.

No. mPLAY is a player for authorized media and does not include tools or keys for protected commercial discs. Please only test with media you legally own or are otherwise authorized to use.

No. mPLAY is independent and is not affiliated with disc format owners, studios, hardware makers, or platform providers.

Apply through the alpha form. Applications are reviewed manually, and selected testers will be invited by email when a suitable build is ready. Submitting the form does not guarantee access.

The private alpha will be distributed directly by mPLAY.me outside the Mac App Store. Future builds are intended to be Developer ID signed and notarized before tester distribution.

A Mac running macOS 26 Tahoe or later, legally owned or otherwise authorized test media, and an active internet connection at app launch during alpha testing for access verification.