M|Replay
M|Replay is a software-defined live production platform for instant replay, officiating review, time-slip recording, delayed playout, playlist creation and immersive video workflows.
Running entirely on standard Mac hardware, M|Replay gives broadcasters, sports producers, event operators, and immersive content creators complete control over live video workflows without the complexity and cost of traditional replay servers.
Capture live video and replay critical moments immediately from any camera angle. Whether you're producing live sports, supporting officiating workflows, or reviewing content during production, M|Replay provides frame-accurate navigation, variable-speed playback and intuitive controls designed for fast-paced live environments.
Create markers, build clips on the fly, and continue recording while operators review and replay content without interruption.
Take control of live content with fixed or adjustable delay workflows. M|Replay can be used to delay a live signal, move through buffered content, and dynamically adapt delay lengths as production requirements change.
For broadcast workflows, M|Replay can preserve critical signal information including timecode, Closed Captions and VANC ancillary data, making it suitable for professional delay and time-slip applications.
For simple 1-input / 1-output workflows, the S|2R bundle includes two standard M|Replay channel licenses at bundle pricing.
Build highlights while the event is still happening. Create clips from live recordings and organize them into playlists as production continues, so highlight packages, review sequences, sponsor segments or end-of-show recaps can be prepared before the show is over.
M|Replay playlists are not limited to clips created by M|Replay. Import external media, combine replay clips with pre-produced content, and mix supported codecs within the same playlist.
Multiple playlists can be prepared in the same session, making it easy to organize content for different production needs while maintaining a single streamlined playout workflow.
M|Replay is not limited to the narrow set of formats typically associated with traditional replay systems. It supports a wide range of professional frame rates, including 23.98 fps, and can work with high-resolution sources such as UHD and 8K.
All recorded content is stored using ProRes, providing a reliable, edit-friendly format for professional production and post-production workflows.
M|Replay supports live immersive replay in ProRes and SMPTE ST 2110 environments, giving production teams a software-defined solution for next-generation live experiences.
The optional HFR workflow also enables ultra-smooth slow-motion playback for productions using high frame rate cameras.
Support for AJA, Blackmagic Design, Deltacast and Macnica hardware, along with SDI and SMPTE ST 2110 infrastructures, allows M|Replay to integrate naturally into existing facilities without proprietary replay hardware.
M|Replay also integrates with professional control solutions including SKAARHOJ controllers, JL Cooper replay panels, Stream Deck and custom API-driven workflows, allowing operators to use the control surfaces that best fit their production environment.
Rules, automation, REST APIs and external control integrations make it easy to connect M|Replay to larger production ecosystems and build workflows tailored to your operation.
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Support is included in our permanent licenses. There are no recurring fees.
Softron has a worldwide network of highly skilled specialists ready to assist.
Setting up our software is simple and straightforward. But we are always happy to help.
Our customers love our products and our support.
Get support
Make sure to test with our free DEMO version available for download before purchasing so you are sure it fits your need. In DEMO mode, the application will burn a blue frame in the recorded file or at output at some intervals. That's the only limitation and difference. After your test, you will keep on using the same application, just with the demo mode unlocked.
Free download
| Version |
Sequoia
15.00
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Sonoma
14.00
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Ventura
13.00
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Monterey
12.00
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Big Sur
11.00
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Catalina
10.15
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| 2.3 and later | ||||||
| 2.2 |
| Required MovieRecorder Version by some macOS Version |
macOS 10.15: Version 2.1 or later (For QuickTime Classic compatibility) |
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| Recommended macOS | macOS 11 or later* | |||||||||||||||||||||||||||||||||||||||||||||
| Supported Mac computers | Intel Processors: Version 2.0 and later* Apple Silicon Processors: Version 2.2 and later* WARNING: With Apple Silicon processors, some third party libraries may not be able to run natively, so will have lower performances. Other libraries may not run at all. Check thefollowing article to know more |
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| Recommended Computer Memory Values assume a worst-case scenario and will vary with the number of input channels, format, and codec used. In normal conditions actual memory usage can be lower, but if the system slows down and buffers start to fill, extra RAM is needed to store the frames—so having more memory always provides a safer margin. |
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| Supported Graphics Cards |
A graphics card that supports Metal is recommended. |
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| Supported Input and Output Devices | SDI & HDMI Devices from AJA, Blackmagic-Design and Deltacast. SMPTE-2110 Devices from AJA, Blackmagic-Design and Macnica. | |||||||||||||||||||||||||||||||||||||||||||||
| Supported Codecs | To record and replay, only Apple ProRes is supported. In the playlist, you can drag and drop clips from the Finder, see below for codecs compatibility. | |||||||||||||||||||||||||||||||||||||||||||||
| Hardware acceleration to encode Apple ProRes |
Supported hardware: All Apple Silicon Macs provide hardware acceleration for ProRes, with the exception of the base M1 chip. The number of Media Engines differ by model (Base, Pro, Max or Ultra).
Required macOS version: macOS 12 or later
Required software version: M|Replay 2.2 or later.
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| Hardware acceleration to decode Apple ProRes |
Supported hardware:All Apple Silicon Macs provide hardware acceleration for ProRes, with the exception of the base M1 chip. The number of Media Engines differ by model (Base, Pro, Max or Ultra).
Required macOS version: macOS 10.15.2 or later
Required software version: M|Replay 2.1 or later.
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| Compatible Storage | For M|Replay we recommend using direct attached storage as we have seen some issues with NAS. Otherwise, most storage that can sustain the required constant write speed (depending on the number of streams, the codec and format). When formatting your storage, make sure to use large block size. For network attached storage (NAS), make sure to disable any kind of cache. Indeed, while caches can be useful if you read and write from time to time to your NAS, video recording generates a continuous, high-speed stream of data. If the cache fills up faster than it can be written to disk, it can cause dropped frames or recording interruptions. This is why, short disk speed test do not show the full story (they will often write and read in the cache), so if you need to run tests, make sure to do long term tests. And finally for your network, if possible, enable jumbo frames, but make sure you know how to set this up with an IT specialist. | |||||||||||||||||||||||||||||||||||||||||||||
| Requires Monitor Connected (Open GL Active) | Yes. Even if M|Replay should behave fine in most cases, it is recommended to keep a monitor connected at all times for best performances. Or you should make the macOS think that there is a monitor connected. Beware of some KVM switches that can cause interrupts in the signal. | |||||||||||||||||||||||||||||||||||||||||||||
| Number of license required | One license per channel (in or out). You can use the license upon your will, either enable them for output or input, depending on what you need at the moment. So you will need 2 licenses at least (one in and one out). | |||||||||||||||||||||||||||||||||||||||||||||
IMPORANT NOTE: M|Replay only supports Apple ProRes, for the sessions settings, to record and replay. But it supports more codecs in the playlist (drag and drop clips to the playlist from the Finder).
Video Codecs
| Format | Support |
|---|---|
| Apple ProRes 422 Family (Proxy, 422, LT, HQ) | |
| Apple ProRes 4444 (4444, XQ) | |
| AVC-Intra (50, 100, 200) | |
| AVCHD | |
| Avid DNxHD | |
| Avid DNxHR | |
| DV-PAL | |
| DV/DVCPRO-NTSC | |
| DVCPro-PAL | |
| DVCPro HD | |
| DVCPro 50 | |
| H.264 | |
| HDV | |
| HEVC | |
| MPEG IMX (30/40/50) | |
| MPEG-2 | |
| MPEG-4 Video | |
| None | |
| Photo-JPEG | |
| Uncompressed | |
| XDCAM EX | |
| XDCAM HD | |
| XDCAM HD422 |
Audio Codecs
| Format | Support |
|---|---|
| AAC | |
| Apple Lossless | |
| MP2 | |
| MP3 | |
| Linear PCM |
Video Wrappers
| Format | Support |
|---|---|
| AVI | |
| DV | |
| M2T | |
| M2V | |
| M4V | |
| MP2 | |
| MP4 | |
| MPEG | |
| MPG | |
| MXF OP1a | |
| QuickTime (MOV) | |
| Transport Stream (ts) |
Still Image Formats
| Format | Support |
|---|---|
| BMP | |
| PSD | |
| GIF ** | |
| JPEG | |
| JPEG 2000 | |
| PNG | |
| Targa | |
| TIFF |
* HEVC requires macOS 10.13 or later and a computer using a Intel Core processor Skylake or later (available in 2016 on the Mac)
** Only first image.
Important Note: Some of the codecs above such as H.264 or MPEG2 can have a lot of variants. This is why we always recommend to have a procedure on how to create the files you put on air. So you are sure it will always behave well. If you receive files from external sources and you don't know how they were generated, it's always a good idea to test them before putting them on air. You can even test them on a different computer with a demo version of one of our playout application.
| Application Version | First Supported Drivers | Last Supported Drivers |
|---|---|---|
| Version 2.1 and later | 15.0 | latest |
| Version 1.1 until 2.0 | 12.4.2 | latest |
| Version 1.0 until 1.0.5 | 12.3.7 | latest |
WARNING:
- Apple Silicon computers require AJA drivers 16.0 or later. Make sure to check which application version support your device in ourhelp center article.
| Application Version | First Supported Drivers | Last Supported Drivers |
|---|---|---|
| Version 2.3.0 and later | 14.5 | latest |
| Version 2.2.2 and later | 11.1 | latest |
| Version 2.1 until 2.2.1 | 11.1 | 14.2 |
| Version 1.1 until 2.0 | 10.9.5 | 14.2 |
| Version 1.0 until 1.0.5 | 10.3.1 | 14.2 |
WARNING:
- macOS 11 (Big Sur) requires Blackmagic-Design drivers 11.7 or later.
- Apple Silicon computers require Blackmagic-Design drivers 12 or later.
| Application Version | First Supported Drivers | Last Supported Drivers |
|---|---|---|
| Version 2.3 and later | 6.33 (For compatibility with multiple DELTA-12G-e-h 8c in Thunderbolt chassis) | latest version |
| Version 2.2 and later | 6.17 Universal beta 1 | latest version |
| Version 2.1 | 6.11 | latest version |
| Version 1.1 until 2.0 | 5.21 | 6.17 |
| Version 1.0 until 1.0.5 | 5.19v3 | 6.17 |
WARNING:
- macOS 10.15 (Catalina) requires drivers version 6.13 or later
- You should only download the Deltacast drivers from our website. Indeed we validate them with our applications before putting them online.
| Application Version | First Supported Drivers | Last Supported Drivers |
|---|---|---|
| Version 2.4 or later | 1.1.2 | latest version |
We know that some of our users can not upgrade their macOS very often. This is why Softron tries to maintain compatibility with older versions of macOS as much as possible, but it is not always possible to achieve. Because Operating Systems are usually significantly improved over previous versions, Softron must use many of the more capable built-in functionalities inherent in Apple's latest OS releases. Failing to do so would mean that Softron software would essentially be blocked from using the new Frameworks provided in the OS. For this reason, Softron's free support is provided only on the current and previous macOS versions. Also, most of our tests will be done on these macOS versions, and only basic tests will be done on the previous OS. We will always try to help, but in some cases, the best solution is to upgrade your macOS to a more recent version.
Softron does not warrant that these recommended configurations will always meet specific user requirements. They are intended as guidelines and are based on extensive testing that Softron has done, they can be changed without notice. Hardware, drivers, software and operating systems change regularly and we advise users and prospective users to evaluate their requirements in their specific environment/workflow using Softron demo licenses that are available for downloading from Softron's web site.
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M|Replay
Version 2.3.4 - 25 August 2025
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Download |
IMPORTANT - New Serial Numbers Activation System - Internet Connection Required (Dongles not impacted)
Starting with version 2.3, M|Replay now uses a new serial number activation and deactivation system, designed to make managing your serial number licenses easier. More info...
When using serial numbers, an internet connection is now required from time to time (does not impact dongle licenses which can remain offline all the time), as the software needs to communicate with our servers every few days. If it cannot connect for an extended period (typically 2 to 3 days), the application will automatically switch to demo mode. Your computer does not need to be connected continuously, but it must go online periodically to maintain activation.
If your computer cannot connect to the internet periodically, you can migrate your license to a dongle instead, for which things remain unchanged and are not impacted by the change. Dongles are available for purchase in our online store.
Useful Resources
- Pre-Release versions
- Release Notes
- Quick Start
- User Manual
- Help Center: Includes a lot of useful information, sometimes not available in the user manual.
- YouTube Channel
Installation instructions
Once downloaded, unzip the file, and drag and drop the "MovieRecorder" Application in your Applications Folder.
Warning! Do NOT run M|Replay from your downloads folder or it will be quarantined. Always drag and drop from the Downloads folder to the Applications folder before using it.
Make sure also to download and install the drivers for your video device:
AJA Drivers
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Blackmagic-Design Drivers
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Deltacast Drivers
For Intel and Apple Silicon
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How to unlock the DEMO version ?
Purchase a license through one of our resellers or the Softron online store, then just activate your serial number in the License window or plug your dongle in the computer.
Upgrade/Update instructions
Just download the latest version and replace your previous version. It is always recommended to run extensive tests with your specific workflow and setup before putting a new version in production. You can use a free demo version for that on a separate computer. Previous legacy versions are available from the general downloads page.
You do not need to deactivate and reactivate your serial number when updating your Softron software. Read the following article to know when to deactivate.
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M|Replay 2.3.3
30 July 2025
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M|Replay 2.2.2 (Universal)
6 September 2024
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M|Replay 2.2.2 (Intel only)
6 September 2024
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M|Replay 2.1.5
13 Januray 2021
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M|Replay 2.0.2
18 February 2019
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M|Replay 1.2.1
30 April 2018
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M|Replay 1.1
9 March 2018
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M|Replay 1.0.5
17 June 2017
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Copyright
This software uses code of FFmpeg, licensed under the LGPLv2.1 and its source can be downloaded here.