# nrrd segmentation file error

**URL:** <https://discourse.slicer.org/t/nrrd-segmentation-file-error/43292>\
**Category:** Support\
**Created:** [June 10, 2025, 4:42pm UTC](https://discourse.slicer.org/t/nrrd-segmentation-file-error/43292 "2025-06-10T16:42:08Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![SDV](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/sdv/32/79161_2.png) [@SDV](https://discourse.slicer.org/u/SDV)\
**Post date:** [June 10, 2025, 4:42pm UTC](https://discourse.slicer.org/t/nrrd-segmentation-file-error/43292/1 "2025-06-10T16:42:08Z")

</div>

Version 5.8.0

Slicer crashed while using paint brush in a segmentation, and now the nrrd segmentation file seems corrupt and I can’t seem to load it in any way. Any help please?

The message detail is:  
Exception thrown in event: C:\D\S\S-0-build\ITK\Modules\IO\NRRD\src\itkNrrdImageIO.cxx:771:  
ITK ERROR: NrrdImageIO(000001A6262E3420): Read: Error reading MYLOCATION\Segmentation.seg.nrrd:

[nrrd] nrrdLoad: trouble reading “MYLOCATION/Segmentation.seg.nrrd”

[nrrd] nrrdRead: trouble

[nrrd] \_nrrdRead: trouble reading NRRD file

[nrrd] \_nrrdFormatNRRD\_read:

[nrrd] \_nrrdEncodingGzip\_read: expected 36502868255 bytes but received 32668896932