H.265/HEVC Compatibility on Mac: ClonerAlliance UHD Pro Max FAQ¶
Issue: 4K H.265 Playback on Mac¶
Q: Why can’t I play 4K videos recorded in H.265/HEVC format on my Mac using QuickTime?
Some users may experience issues when trying to play 4K videos recorded with the ClonerAlliance UHD Pro Max in H.265/HEVC format on Mac computers using QuickTime Player. The video may appear as a black screen with only audio playing.
Technical Explanation¶
The ClonerAlliance UHD Pro Max supports advanced H.265/HEVC encoding for superior compression efficiency when recording 4K content. Some H.265/HEVC encoded MP4 files may not play on macOS because the system requires these files to be marked as HVC1. This specific marking is essential for compatibility with macOS.
Solutions¶
Option 1: Use Alternative Media Players¶
The simplest solution is to use an alternative media player that has full support for H.265/HEVC decoding:
VLC Media Player: A free and open-source media player that works on Mac, Windows, and Linux - Download from: https://www.videolan.org/vlc/
Option 2: Use UHD Pro Max Mp4 Tool¶
We’ve developed a special tool to enhance Mac compatibility, which can fix this issue in just one minute:
MP4 Fix Tool for Mac: For Mac users experiencing this specific issue
Download from: https://static.cloner-alliance.com/release/UHM_macos_mp4_fix_tool.zip
This tool modifies the marking to be compatible with the macOS system
Simple to use: Click “Add Files” to select your 4K H.265/HEVC videos, the tool will automatically process the files to make them compatible with QuickTime
Option 3: Change the recording resolution to 1080p¶
For maximum compatibility across all devices and players:
Nevigate to “Recording Settings”->”Recording Resolution”
Select 1920x1080
Record your content
Future Updates¶
Our development team is aware of this issue and is working on:
Firmware updates that may improve compatibility
Software tools to help users manage and convert affected files
The next generation device will use an improved chipset that resolves this compatibility issue
For the latest updates and solutions, please visit our Knowledge Base at https://www.cloner-alliance.com/help/knowledgebase/