# \[F\] Disappearing "cdec" tag in Nero AAC

**URL:** https://community.mp3tag.de/t/f-disappearing-cdec-tag-in-nero-aac/10052
**Category:** Fixed Bugs
**Tags:** bug-fixed
**Created:** [March 7, 2010, 2:23am UTC](https://community.mp3tag.de/t/f-disappearing-cdec-tag-in-nero-aac/10052 "2010-03-07T02:23:43Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![matt\_t](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/m/7cd45c/32.png) [@matt\_t](https://community.mp3tag.de/u/matt_t)
#### Post date: [March 7, 2010, 2:23am UTC](https://community.mp3tag.de/t/f-disappearing-cdec-tag-in-nero-aac/10052/1 "2010-03-07T02:23:43Z")

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Nero's AAC encoder writes a "cdec" tag with the settings used, e.g. "ndaudio 1.5.4.0 / -q 0.53 -lc". However editing any other tag in MP3Tag (I noticed it after adding album art) deletes the cdec tag, when it shouldn't.

BTW I'm using v2.45a

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