# What are "SONICBLUE/RID" tags?
**URL:** https://community.mp3tag.de/t/what-are-sonicblue-rid-tags/9872
**Category:** Support
**Created:** [February 10, 2010, 6:48pm UTC](https://community.mp3tag.de/t/what-are-sonicblue-rid-tags/9872 "2010-02-10T18:48:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Apesbrain](https://community.mp3tag.de/u/Apesbrain)
#### Post date: [February 10, 2010, 6:48pm UTC](https://community.mp3tag.de/t/what-are-sonicblue-rid-tags/9872/1 "2010-02-10T18:48:50Z")
Does anyone know what "SONICBLUE/RID" tags are? Just transfered some files to a portable player using the manufacturer's content management app and noticed these tags had been added to my files. They are a 32-character HEX key and seem to be unique for each song file. Thanks.
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### Author:  [@DazBYorks](https://community.mp3tag.de/u/DazBYorks)
#### Post date: [February 14, 2010, 9:47am UTC](https://community.mp3tag.de/t/what-are-sonicblue-rid-tags/9872/2 "2010-02-14T09:47:25Z")
Hi,
Maybe the application for [this](http://www.pcmag.com/article2/0,2817,715935,00.asp) adds them...
Daz
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [February 9, 2026, 12:22pm UTC](https://community.mp3tag.de/t/what-are-sonicblue-rid-tags/9872/3 "2026-02-09T12:22:10Z")