# Replace with Regular Expression on Title **URL:** \ **Category:** Support\ **Created:** [September 28, 2020, 2:01pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316 "2020-09-28T14:01:22Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![pingpongitore](https://community.mp3tag.de/user_avatar/community.mp3tag.de/pingpongitore/32/8123_2.png) [@pingpongitore](https://community.mp3tag.de/u/pingpongitore)\ **Post date:** [September 28, 2020, 2:01pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/1 "2020-09-28T14:01:22Z")
Hi Everyone, I recently upgraded to the latest version, 3.02 and the action I had been using for years to clean up the title of my mp3 and mp4's no longer functions. I had an action setup to replace with regular expression to remove the first 3 characters of a title so that something like this: "01-Name of Song" would be transformed into this: "Name of Song" I've not changed anything about the action at all for years and it stopped processing files after this latest version as far as I can tell. Did something change with regex processing and file titles? Here is what my regular expression looks like: Regular Expression "TITLE": "^.(3)" -\> "" Any help with this would be greatly appreciated! ---
**Author:** ![pingpongitore](https://community.mp3tag.de/user_avatar/community.mp3tag.de/pingpongitore/32/8123_2.png) [@pingpongitore](https://community.mp3tag.de/u/pingpongitore)\ **Post date:** [September 28, 2020, 2:13pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/2 "2020-09-28T14:13:36Z")
I guess something did change. I did some more reading on regex elsewhere on the internet and found that I can use "^..." instead. I wonder what was changed in Mp3Tag to stop processing "^.(3)" for this. ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [September 28, 2020, 2:13pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/3 "2020-09-28T14:13:43Z")
> [@pingpongitore](#): > > Regular Expression "TITLE": "^.(3)" -\> "" I doubt that this has ever fullfilled its purpose. The round brackets encapsulate a pattern that will be re-used later. It should be: `^.{3}-` BUT: If you want to remove any number, try `^\d+-` which would also cope with 3-digit-numbers I also see that even though the string is `01-Name of Song` that the expression that you use has a space between the first 3 characters and the hyphen. So perhaps `^\d+\s*-\s*` would be even more flexible. ---
**Author:** ![ohrenkino](https://community.mp3tag.de/user_avatar/community.mp3tag.de/ohrenkino/32/4843_2.png) [@ohrenkino](https://community.mp3tag.de/u/ohrenkino)\ **Post date:** [September 28, 2020, 2:15pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/4 "2020-09-28T14:15:26Z")
> [@pingpongitore](#): > > I wonder what was changed in Mp3Tag I can assure you that nothing has changed. The syntax that you used does not serve the purpose now and never has. ---
**Author:** ![pingpongitore](https://community.mp3tag.de/user_avatar/community.mp3tag.de/pingpongitore/32/8123_2.png) [@pingpongitore](https://community.mp3tag.de/u/pingpongitore)\ **Post date:** [September 28, 2020, 2:15pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/5 "2020-09-28T14:15:29Z")
Thanks for the reply and information, it was working for years. I had built the action based on an old post I had found here. I appreciate the info you've given on a different method as well. I'm going to save that and give it a shot too. Thanks again! ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [October 28, 2020, 2:15pm UTC](https://community.mp3tag.de/t/replace-with-regular-expression-on-title/50316/6 "2020-10-28T14:15:31Z")
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