MediaConch Newsletter #8 – Oct. 2016


New Release Notes

What’s new in MediaConch 16.09

Local GUI / CLI / Server / Online

  • New policy format to allow complex policies
  • Update example policies and displays
  • New policy editor to build complex policies
  • Policy rules can use MediaTrace
  • Handling of FFV1 16-bit bitdepth (YUV and RGB)
  • Support of Matroska FieldOrder, MatrixCoefficients, BitsPerChannel, Range, TransferCharacteristics, Primaries new elements
  • Stream count policy test (in General section)

Online GUI


  • Compare files (technology preview)


  • New API version to handle new policy format


Bonus Update for the GUI / Server!

How to Migrate old policies 

If you already have policies created before the MediaConch 16.09 release and want them back, follow this procedure:

1. First, go to your local folder:

  • On Windows: go to %APPDATA% (most of the time, it will be C:\Users$USER\AppData\Roaming).
  • On Mac OS: go to your $HOME/Library/Application Support/ directory (most of the time, $HOME will be /Users/$USER).
  • On Linux: go to your $HOME/.local/share/ directory (most of the time, $HOME will be /home/$USER).

2. Then, go to MediaConch/policies (or MediaConch\policies on Windows) directory. If it doesn’t already exist, create a directory named “-1” and move the XSL files to this directory.

3. Launch the GUI or Server and policies will be loaded.

4. Contact us if you created complex policies and would like us to move them to the new format


Latest Downloads

Download MediaConch’s latest release or a daily build.

MediaConch now supports plugins including VeraPDF and DPFManager!



First and foremost, Dave wrote a very insightful BLOG entitled ‘Policies vs. Reality’ about the deets of customizable policies and recent updates to their functionality. Make sure to check it out!

Now you no longer need an account to use MediaConch Online! Sign in as a guest anytime, from anywhere!


MediaArea in the Wild!

Dave and Natalie will join forces with the Archivematica team to for a special webinar on using MediaConch as a micro-service.

Sign up here for our MediaConch<>Artefactual Webinar – October 18th at 9 am PST / 12 noon EST / 6 pm CEST. Spots are limited to 50 participants, so sign up soon!


mediaconch_nl2Late last month, Dave and Tessa went to the Library of Congress for IASA to share the current status of CELLAR (Codec Encoding for LossLess Archiving and Realtime Transmission): Update from an IETF Working Group for Archival Audiovisual
Formats. Check out their fancy slides!


Ashley, Erwin, and Jérôme are currently in Bern, Switzerland for iPRES2016 where Ashley is presenting on the paper she and Dave wrote about the status of CELLAR.

Also at iPRES, Ashley and Jérôme will host a workshop to demo all the latest with MediaConch.


pfo_expwshop_banners6The PREFORMA project invites all members of the digital preservation community to attend thethe Experience Workshop – Improving long-term digital preservation, which will be held in Berlin on November 23, 2016. Register here!

The MediaConch project and this symposium has received funding from PREFORMA, co-funded by the European Commission under it’s FP7-ICT Programme.



MediaArea is eager to build a community of collaborators and testers to integrate the software in their workflows and participate in usability testing. Please contact us if you’d like to be involved!


Visit the PREFORMA Blog

Visit the PREFORMA Website

Leave a Reply

Related Articles

MediaConch Newsletter #10 – June 2017
We are pleased to announce the progress we’ve made this year. There are new updates to MediaConch that expand its capabilities, user stories to share, and new events related to implementation checking and the standardization of open audiovisual formats. Don't hesitate to contact us if you'd like to join our community, be involved in our usability testing and integrate the software in your workflow!
Here is the report of the workshop that the PREFORMA team organised at iPRES 2016 to dive into the larger narrative of the project, show the three different tools in development, detail the main standardisation strands and get a conversation started between potential users of the tools with the people who are hard at work making them happen.
No Time to Wait: Standardizing FFV1 and MKV for Preservation
Check out the results of the symposium organised In Berlin in conjunction with IETF’s 96th meeting and hosted by Deutsche Kinemathek, Zuse Institute Berlin, and MediaArea. The symposium brought together 70+ audiovisual archivists, technologists and format designers with a focus on the standardization of a preservation-grade audiovisual file format combination package.
MediaConch Newsletter #5 - June 2016
What’s new in MediaConch 16.05, PREFORMA's conformance checker for AV files, latest downloads, upcoming events and much more in the June 2016 edition of MediaConch newsletter. Register to the No Time to Wait! symposium on the standardization & use of FFV1 & Matroska in archives. Download MediaConch from PREFORMA Open Source Portal, try it and send us your feedback. We will use it to improve the software.