# Saving a playable registration sequence (.mrb)

**URL:** <https://discourse.slicer.org/t/saving-a-playable-registration-sequence-mrb/6311>\
**Category:** Support\
**Tags:** registration, extensions-manager\
**Created:** [March 27, 2019, 3:39pm UTC](https://discourse.slicer.org/t/saving-a-playable-registration-sequence-mrb/6311 "2019-03-27T15:39:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Fabian\_Castro\_Orjuel](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/fabian_castro_orjuel/32/3346_2.png) [@Fabian\_Castro\_Orjuel](https://discourse.slicer.org/u/Fabian_Castro_Orjuel)\
**Post date:** [March 27, 2019, 3:39pm UTC](https://discourse.slicer.org/t/saving-a-playable-registration-sequence-mrb/6311/1 "2019-03-27T15:39:11Z")

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Operating system: Windows 10  
Slicer version: 4.11  
Expected behavior: A 3DSlicer playable file -object- 5-10 second sequence  
Actual behavior: The registration workflow, takes a nrrd file -15 frames for instance- and renders the three channels (id=“vtkMRMLSliceNode1”, id=“vtkMRMLSliceNode2”, id=“vtkMRMLSliceNode3”) in window “vtkMRMLViewNode1”. I need help saving this window sequence (same # of frames) in a file than can later be reproduced. What happens now is that the end user needs to manually reproduce the registratio over and over again everytime he/she wants to the results.

My most needed help is how to get the "“vtkMRMLViewNode1” rendering and what kind of file would that be? MRB perhaps?.

Thanks  
Fabian