Experimental disc menus.
Motion menus, HDMV navigation, branching playlists, and bundled BD-J compatibility components are part of the alpha test surface.
Private alpha - applications open
Private Alpha Applications Open.
mPLAY is preparing for a limited macOS alpha focused on real-world playback, menu, subtitle, audio, and disc image testing. If you have a Mac and legally owned media you can test with, apply to join the early tester group.
Applications are reviewed manually. Selected testers will be invited when a suitable build is ready.
Open disc image
Playback
Test real-world media behavior across formats.
Chapters
Exercise authored navigation and scene changes.
Audio
Check advanced tracks, channel layouts, and sync.
Menus
Try experimental menu paths and bonus content.
00:42
02:11
DVD-Video
Blu-ray
UHD 4K Blu-ray
HD-DVD
Video CD
VideoNow
more formats coming
Limited private testing
Built for the messy
edges of disc playback.
The alpha is intended to find where playback, navigation, subtitles, audio, and unusual disc structures still need work. Advanced menu support, including BD-J paths, is experimental during this phase.
Advanced audio testing.
Help test Dolby Atmos, TrueHD, DTS:X, DTS-HD MA, LPCM, AC3, alternate language tracks, and commentary switching.
Special features.
Bonus content, picture-in-picture paths, and branching commentaries are useful alpha test cases when your media is authorized for testing.
DVD
BD
UHD
HD-DVD
VCD
VideoNow
+ soon
One test app. Many formats.
DVD, Blu-ray, UHD Blu-ray, HD-DVD, VCD, ISO files, and disc folders are all part of the limited testing plan.
Mac-focused.
The alpha focuses on macOS behavior across Apple Silicon, Intel Macs, built-in displays, external displays, and audio hardware.
HDR and subtitle edge cases.
HDR output, subtitle timing, unusual playlists, and performance regressions are especially helpful areas for early testers.
Format support
Discs your shelves
still remember.
The first alpha round is about measured compatibility work, not a broad release. These are the formats and structures mPLAY is actively preparing to test with selected Mac users.
-
01
DVD-Video
VOB / IFO navigation, multi-angle behavior, subtitle streams, and older authoring patterns.
Alpha test -
02
Blu-ray Disc
BDMV folders, HDMV menus, experimental BD-J paths, seamless branching, and 1080p/24 playback.
Experimental -
03
UHD 4K Blu-ray
HEVC Main 10, HDR metadata, Dolby Vision test cases, Atmos, DTS:X, and high-bitrate performance.
Experimental -
04
HD-DVD
XPL menu behavior, secondary video, and unusual legacy authoring patterns.
Alpha test -
05
Video CD
MPEG-1 playback, menu variants, karaoke discs, and older low-resolution timing behavior.
Alpha test -
06
VideoNow
Unusual PVD structures, grayscale and color variants, audio sync, and scaling behavior.
Experimental -
soon
LaserDisc captures · CED · UMD
Future research areas will depend on tester feedback, technical feasibility, and legally usable samples.
Research
Why alpha testers matter
Real setups find
real playback issues.
Disc images and folders can vary wildly by format, region, authoring tool, audio stack, display, and Mac hardware. The private alpha is designed to learn from that variation before mPLAY is offered more broadly.
- ↳ Menu behavior, subtitles, audio tracks, and performance need varied real-world testing.
- ↳ Alpha builds are experimental and may fail on media that should eventually work.
- ↳ Applications are reviewed manually so each test round has the right mix of hardware and formats.
- ↳ During alpha testing, launch requires internet access for private build access verification.
Applications open
Private Alpha
Applications Are Open
Applications are reviewed manually. Selected testers will be invited when a suitable Developer ID signed and notarized macOS build is ready for their test profile.