MDR Support – eTV


Could not connect to Mediasite Desktop Recorder service

The Desktop Recorder service may need to be started manually.

1) Please close out all background / third-party software to make sure another application isn’t interfering. You may need to go as far as opening Task Manager and disabling everything that’s not a default Windows service.

2) Close out the Desktop Recorder program – right click the Mediasite logo in the lower-right corner by the computer’s clock to exit.

3) Go to the Windows command prompt in the lower left, type Services and click on the Services app to open.

4) Next locate ‘Mediasite Desktop Recorder Service’ in the list of Services. Double-click on it and then click Start.

You can also set the service to try and automatically restart in the Recovery tab. Next to “First Failure” and “Second Failure”, change ‘Take No Action’ to ‘Restart the Service’ and click OK.

5) Lastly, re-launch the Desktop Recorder application.

***Set Recovery Options***
If the error continues to be a problem, set the recovery options:

– in Services, right click on the Mediasite Desktop Recorder Service
– choose Properties
– click on the Recovery tab
– change the drop down beside First Failure, Second Failure, and Subsequent Failure to ‘Restart the Service’ then click on Apply, then OK


– In Mediasite Desktop Recorder, click on Settings. Under General Settings uncheck ‘Upload files while recording’.
– You can now upload your presentation at a later time of the day when internet usage is not as busy. Click the Upload button beside your recorded presentation when you are ready to upload your recording.


Here are the steps to re-upload an MDR presentation:

– Log in to
– Click on the Add Media button
– In the ‘I want to upload an existing desktop recording’ box click on the Upload Presentation button
– Type in any name, and follow the prompts to launch the Recorder
– This will reset the presentation Upload buttons. Click Upload beside the presentation you would like to re-upload to the server. (Before re-uploading, you can click on the name of the presentation to rename it if you’d like.


Use the embed code to embed your presentation into your site.

To find it:

– go to
– open your presentation
– scroll down the right column of options until you find Share, close to the bottom
– click on the Share Presentation button
– click on the Embed tab
– you can choose the size that your video will appear as when embedded
– click on the Copy button below the Embed Code box
– paste the copied embed code into your site


All College staff have access to OneDrive and you can upload and share your video from there. I’ve had really good success using it for larger files over the past few weeks.

Here’s IT’s documentation on using OneDrive:

Copy Files to Onedrive
Share Files in Onedrive


– log in to Mgmt Portal
– click on the Mediasite Users folder
– click on the user’s folder (i.e.
– click on the presentation -> Edit -> Delivery -> check Publish To Go -> Save
– click on Download -> Submit -> wait for the Publish To Go package has been created, then download to your computer
– or you can click the checkbox next to the presentation(s) -> Manage Content -> Add Delivery -> check Publish To Go -> choose the Publish to Go Server -> Save
– open the presentation and download


Use this upload cheat when you need to upload content from another user or add two video sources:

– Create a new test presentation or find an existing presentation with view settings that match
– Locate the test presentation source folder in Documents – Mediasite Desktop Recordings (use the date to match)
– Delete the existing content, and copy the new content into the folder. You can keep the existing cursor.json file, as it’s needed to upload
– Log in to
– Click on the Add Media button
– In the ‘I want to upload an existing desktop recording’ box click on the Upload Presentation button
– This will reset the presentation Upload buttons. Click Upload beside the presentation you’ve replaced the content for. (Before re-uploading, you can click on the name of the presentation to rename it if you’d like.)


Media files supported by Multi-Format Video Import

In 7.3 uploads and imports of media files that meet our criteria bypass transcoding.

– H.264 video codec
– AAC audio codec
– Keyframe interval of 6 seconds or less
– Constant frame rate


>But even then, is there a way to improve performance?
Transcoding is cpu intensive so a faster cpu is better.

>e.g. Does the transcode service default to using just one processor, and is there a hidden setting to bump it up to utilize the rest? Any caveats to increasing the “max concurrent instances” in the Transcode Service Manager?
Set it to 1 less than the total number of cores that you have on the transcode server.

Best practices for Media Import and Upload KBA000004099

Media file requirements to bypass Transcoding


Mediasite Desktop Recorder is unable to run on Mac Catalina operating systems, as the OS does not support 32-bit applications. Mediasite has developed Capture for Catalina users. Capture is not as fully featured as MDR, but does allow you to record video, audio, and screencasts.

Below are resources for installing and using Capture:

Guide: Installing and Using Capture

Video: Installing Capture

Video: Using Capture


This feature is not doable in the Desktop Recorder without software or make some changes to settings. The recorder is designed to accept audio from a single input, which is what you choose from the drop down menu when setting up your presentation.

(there are likely other ways to do this, but this is the first solution I got to work)

1) Make sure the Mediasite Desktop Recorder is closed

2) Navigate to the Sound Control Panel
There are several ways to do this. The easiest path is:
• Right click on the speaker icon in your system tray
• Choose Open Sound Settings
• In the Sound window, click on Sound Control Panel, found on the right hand side under Related Settings

3) In the Sound Control Panel, click on the Recording tab
• You should see either Stereo Mix or Rec. Playback
• Right click and choose Enable, then click Apply

4) In the Recording tab, look for Microphone.
• Right click and choose Properties. Click on the Listen tab.
• Click the Listen to this device checkbox
• Click Apply, then OK

You will be hearing your own audio loopback through your computer speakers. You will have to either turn off or turn down your speakers. Once the speakers are turned off or down, this will not effect the recording.

5) Open the Mediasite Desktop Recorder and create a new recording.
• In the Setup Hardware Tab, change your Microphone Input to Stereo Mix or Rec. Playback
• You should now be able to record your own audio and any audio that you play on your computer

Make sure to record a quick test presentation to make sure these steps all work correctly.

ERROR: Failed to write screen data

– VPN may be required for their connection


Users with a computer running an AMD video device may experience failures after recording with Mediasite Desktop Recorder. The presentation will record successfully, upload to the server, but then the post-processing will fail and the presentation will not be viewable.

We are currently investigating this issue and expect to have a server-side fix available in a future release. In the meantime, the following steps can be taken on the end-user’s computer where Desktop Recorder is installed.

– Log into Windows with an Administrator level account.
– Open Device Manager – in most versions of Windows 10 you can right click on the Start button and choose Device Manager from the list. Otherwise, press Start and then search for Device Manager.
– Expand the category for Display Adapters. There should be an entry here for AMD Radeon Vega Graphics (will be listed as Vega 8 or 10 depending on your hardware).
– Right click on the AMD Radeon entry and choose Disable Device. Note that when you do this, the built-in laptop display may go blank for upwards of a minute. Before making this change, we suggest that you are able to connect an external monitor to your device in case the internal display does not respond.
– After making these changes, future recordings will process properly. Note that these changes must be made before a recording is made; existing recordings done before the settings were changed cannot be processed on the server.