# comparing id3v1 and id3v2 tags

**URL:** https://community.mp3tag.de/t/comparing-id3v1-and-id3v2-tags/10415
**Category:** Support
**Created:** [May 10, 2010, 4:09am UTC](https://community.mp3tag.de/t/comparing-id3v1-and-id3v2-tags/10415 "2010-05-10T04:09:17Z")
**Posts on this page:** 1
**Showing post:** 1

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### Author: ![chrizoo](https://community.mp3tag.de/user_avatar/community.mp3tag.de/chrizoo/32/233_2.png) [@chrizoo](https://community.mp3tag.de/u/chrizoo)
#### Post date: [May 10, 2010, 4:09am UTC](https://community.mp3tag.de/t/comparing-id3v1-and-id3v2-tags/10415/1 "2010-05-10T04:09:17Z")

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Hi. Since I have not yet figured out the full extent of mp3tag's powers, I wanted to ask you if mp3tag has means to solve the following problem:

I want to parse my whole music collection and get rid of all my id3v1 tags. However I don't want to discard them blindly, but compare them first with the v2 tags and only delete v1 tags that are indeed identical - in order not to lose any information (=delete all except inconsistent tags). I would then compare the remaining inconsistent (not identical) tags manually.

So what I would need is to tell mp3tag to **check if v1=v2, if true delete v1, and do this with all my files.** (scenario A)

I would be already quite happy with the above. However the perfect (and a bit more complicated scenario) would be as follows:  
**compare all v1 fields to their v2 counterparts and delete all identical v1 fields, then go to next file.** (scenario B )

Is there a way mp3tag's features can help?  
thank you

PS: My first guess was "actions" ... but I didn't find any appropriate action type. Actually, I'd need kind of an "IF" operator.

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_[View the full topic](https://community.mp3tag.de/t/comparing-id3v1-and-id3v2-tags/10415)._