# nDVR Playback Stutters

**URL:** <https://community.wowza.com/t/ndvr-playback-stutters/37336>\
**Category:** Wowza Streaming Engine\
**Created:** [February 26, 2014, 5:43pm UTC](https://community.wowza.com/t/ndvr-playback-stutters/37336 "2014-02-26T17:43:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Kenny\_Griffin](https://avatars.discourse-cdn.com/v4/letter/k/3ab097/32.png) [@Kenny\_Griffin](https://community.wowza.com/u/Kenny_Griffin)\
**Post date:** [February 26, 2014, 5:43pm UTC](https://community.wowza.com/t/ndvr-playback-stutters/37336/1 "2014-02-26T17:43:23Z")

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I am testing out the nDVR function and have gotten everything running. I am using JW Player to play the stream and my window duration is set to 6 hours. The stream plays back smoothly when starting from scratch, as in I have nothing recorded yet. However, as the stream records and I get up past an hour recorded, the stream starts to stutter every few seconds. When I get to the 6 hour limit, the playback is almost unwatchable. Is there some setting I am missing? Here is the URL to a test page.

[http://www.resortcams.com/kennytest/dvr.php](http://www.resortcams.com/kennytest/dvr.php)

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**Author:** ![Richard\_Lanham](https://avatars.discourse-cdn.com/v4/letter/r/c68b51/32.png) [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)\
**Post date:** [March 6, 2014, 7:50pm UTC](https://community.wowza.com/t/ndvr-playback-stutters/37336/2 "2014-03-06T19:50:23Z")

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With WindowDuration that high you should use the [nDVR Playlist delegate](https://www.wowza.com/docs/how-to-use-wowza-ndvr-playlist-request-api) to limit per client. Otherwise the dvr manifest is too long and causes client-side problems.

Richard