# Filter for finding track number differences **URL:** \ **Category:** Support\ **Created:** [June 15, 2023, 11:42pm UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280 "2023-06-15T23:42:29Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![DTW](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/5f9b8f/32.png) [@DTW](https://community.mp3tag.de/u/DTW)\ **Post date:** [June 15, 2023, 11:42pm UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280/1 "2023-06-15T23:42:29Z")
I am looking to find a filter to highlight any difference between the track number and the track number in the Filename if possible please?. I have notice a few tracks where there is a difference and just wanted to check my whole DB to highlight those that are a problem. just as an example: ``` Filename Track # Title ``` 11 Led Zeppelin - Good Times Bad Times.flac 01/09 Good Times Bad Times Thanks ---
**Author:** ![MotleyG](https://community.mp3tag.de/user_avatar/community.mp3tag.de/motleyg/32/440_2.png) [@MotleyG](https://community.mp3tag.de/u/MotleyG)\ **Post date:** [June 16, 2023, 1:34am UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280/2 "2023-06-16T01:34:43Z")
> [@DTW](#): > > I am looking to find a filter to highlight any difference between the track number and the track number in the Filename if possible please? This should work, including both for single and 2-digit track numbers in both the filename and title. `"$if($eql($num($left(%_filename%,2),2),$num($left(%track%,2),2)),yes,no)" IS no` ---
**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:** [June 16, 2023, 5:47am UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280/3 "2023-06-16T05:47:41Z")
Just as a speciality in this case as both strings start with a number: `"$ifgreater($strstr($num(%_filename%,2),$num(%track%,2)),0,Yes,no)`" IS no ---
**Author:** ![DTW](https://community.mp3tag.de/letter_avatar_proxy/v4/letter/d/5f9b8f/32.png) [@DTW](https://community.mp3tag.de/u/DTW)\ **Post date:** [June 16, 2023, 8:01am UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280/4 "2023-06-16T08:01:28Z")
Many thanks to you both for helping me. That worked well. It identified 221 tracks out of more than 130000 that needed to be corrected. Thanks again 🙂 ---
**Author:** ![system](https://community.mp3tag.de/uploads/default/original/2X/c/ce7035d426cb755a7916793326d23b465222a407.png) [@system](https://community.mp3tag.de/u/system)\ **Post date:** [July 16, 2023, 8:02am UTC](https://community.mp3tag.de/t/filter-for-finding-track-number-differences/61280/5 "2023-07-16T08:02:04Z")
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