# EXT-X-TARGETDURATION

**URL:** <https://community.wowza.com/t/ext-x-targetduration/48362>\
**Category:** Wowza Streaming Engine\
**Created:** [March 21, 2017, 10:36am UTC](https://community.wowza.com/t/ext-x-targetduration/48362 "2017-03-21T10:36:10Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Heinz\_Lechner](https://avatars.discourse-cdn.com/v4/letter/h/82dd89/32.png) [@Heinz\_Lechner](https://community.wowza.com/u/Heinz_Lechner)\
**Post date:** [March 21, 2017, 10:36am UTC](https://community.wowza.com/t/ext-x-targetduration/48362/1 "2017-03-21T10:36:10Z")

</div>

Hi!

Apple strongly recommends to set EXT-X-TARGETDURATION to 6 seconds

[https://developer.apple.com/library/content/technotes/tn2224/\_index.html#//apple\_ref/doc/uid/DTS40009745-CH1-MEDIASTREAMSEGMENTATION-USE\_6\_SECOND\_TARGET\_DURATIONS](https://developer.apple.com/library/content/technotes/tn2224/_index.html#//apple_ref/doc/uid/DTS40009745-CH1-MEDIASTREAMSEGMENTATION-USE_6_SECOND_TARGET_DURATIONS)

Can this be achieved by setting **_cupertinoChunkDurationTarget_** to 6000?

I can`t find this property for VOD Applications, can i set this property only for live streams?

Regards

Robert