# Does appendFile still work in WSE 4.5.0 (With WebRTC preview add-on)?

**URL:** <https://community.wowza.com/t/does-appendfile-still-work-in-wse-4-5-0-with-webrtc-preview-add-on/47598>\
**Category:** Wowza Streaming Engine\
**Created:** [October 14, 2016, 6:42pm UTC](https://community.wowza.com/t/does-appendfile-still-work-in-wse-4-5-0-with-webrtc-preview-add-on/47598 "2016-10-14T18:42:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Sergey\_Zolotorev](https://avatars.discourse-cdn.com/v4/letter/s/e5b9ba/32.png) [@Sergey\_Zolotorev](https://community.wowza.com/u/Sergey_Zolotorev)\
**Post date:** [October 14, 2016, 6:42pm UTC](https://community.wowza.com/t/does-appendfile-still-work-in-wse-4-5-0-with-webrtc-preview-add-on/47598/1 "2016-10-14T18:42:33Z")

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Could somebody confirm that appending mode still works in WSE 4.5.0?

I have StreamType=live-record, versionFile=false and appendFile=true in Application.xml (Streams/Properties) and trying to record several streams (with the same name) and I see that WSE creates a new file every time (1d99d9b2-b6ff-41aa-bb9d-a80ba94201e4.mp4, 1d99d9b2-b6ff-41aa-bb9d-a80ba94201e4\_2.mp4 etc).

Can be it an issue of WebRTC preview add-on (v. 17727)?

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**Author:** ![Jason\_Tuchler](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_tuchler/32/462_2.png) [@Jason\_Tuchler](https://community.wowza.com/u/Jason_Tuchler)\
**Post date:** [November 30, 2016, 10:29am UTC](https://community.wowza.com/t/does-appendfile-still-work-in-wse-4-5-0-with-webrtc-preview-add-on/47598/2 "2016-11-30T10:29:56Z")

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Hello,

I have not seen this as a reported issue. I would recommend either opening a [support case](https://www.wowza.com/support/open-ticket) or upgrading to Wowza Streaming Engine 4.6.0 with WebRTC package 19242 to see if the issue still persist the latest versions.

Regards,

JasonT