# nDVR conversion to MP4 failing

**URL:** <https://community.wowza.com/t/ndvr-conversion-to-mp4-failing/53707>\
**Category:** Wowza Streaming Engine\
**Created:** [July 25, 2019, 2:52pm UTC](https://community.wowza.com/t/ndvr-conversion-to-mp4-failing/53707 "2019-07-25T14:52:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Alex\_Lynch](https://avatars.discourse-cdn.com/v4/letter/a/f07891/32.png) [@Alex\_Lynch](https://community.wowza.com/u/Alex_Lynch)\
**Post date:** [July 25, 2019, 2:52pm UTC](https://community.wowza.com/t/ndvr-conversion-to-mp4-failing/53707/1 "2019-07-25T14:52:25Z")

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Hi,

I am trying to convert a single nDVR store using the REST API both with and without start/end parameters. When I query DVR converter status shortly after submitting the request, the state is SUCCESSFUL, but the result is a 160 byte file called .partial.mp4. Here’s what the converter status looks like:

{ “serverName”: “_defaultServer_”, “dvrStoreName”: “CBS1HD\_512.stream.21”, “DvrConverterStore”: { “dvrStoreName”: “CBS1HD\_512.stream.21”, “audioAvailable”: true, “videoAvailable”: true, “isLive”: false, “dvrStartTime”: 20483412, “dvrEndTime”: 22307100, “duration”: 1823688, “utcStart”: 1564001665995, “utcEnd”: 1564003489671, “outputFilename”: null, “conversionStatus”: { “storeName”: “CBS1HD\_512.stream.21”, “fileName”: “/usr/local/WowzaStreamingEngine/content/CBS1HD\_512.stream.21.partial.mp4”, “state”: “SUCCESSFUL”, “statusCode”: “NONE”, “errorStrings”: [], “startTime”: 1563995848811, “endTime”: 1563995849020, “duration”: 209, “currentChunk”: 0, “chunkCount”: 887, “fileSize”: 0, “fileDuration”: 0 } }}

I looked at the access and error logs and didn’t see anything indicating a problem.

Any ideas?

Thanks,

Alex.

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<div class="post-metadata">

**Author:** ![Rose\_Power-Wowza\_Com](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/rose_power-wowza_com/32/431_2.png) [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Post date:** [July 25, 2019, 11:24pm UTC](https://community.wowza.com/t/ndvr-conversion-to-mp4-failing/53707/2 "2019-07-25T23:24:34Z")

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Hi @Alex Lynch that is odd behavior. Our engineers would like you to submit a support ticket so they can try and replicate the issue with it storing that small partial file. They’d like to take a closer look. Sorry we just can’t tell without full access to your config.

[https://www.wowza.com/support/open-ticket](https://www.wowza.com/support/open-ticket)