# HLS manifest customization: Media Sequence and Target Duration

**URL:** <https://community.wowza.com/t/hls-manifest-customization-media-sequence-and-target-duration/95154>\
**Category:** Wowza Streaming Engine\
**Created:** [July 15, 2022, 1:56pm UTC](https://community.wowza.com/t/hls-manifest-customization-media-sequence-and-target-duration/95154 "2022-07-15T13:56:26Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Connessione](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@Connessione](https://community.wowza.com/u/Connessione)\
**Post date:** [July 17, 2022, 4:36pm UTC](https://community.wowza.com/t/hls-manifest-customization-media-sequence-and-target-duration/95154/2 "2022-07-17T16:36:39Z")

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1. To avoid caching see this [post](http://community.wowza.com/t/is-it-possible-to-set-different-cache-control-header-for-200-and-404-request/52615/2).

2. Target Duration: _fixing the TargetDuration to a constant value_ -\> what do you mean by this? what kind of values do you get now?

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_[View the full topic](https://community.wowza.com/t/hls-manifest-customization-media-sequence-and-target-duration/95154)._