# Optimize FLAC Utils Not Available in Batch Selections
**URL:** https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690
**Category:** Support
**Created:** [February 5, 2024, 3:25pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690 "2024-02-05T15:25:00Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@mista\_j](https://community.mp3tag.de/u/mista_j)
#### Post date: [February 5, 2024, 3:25pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/1 "2024-02-05T15:25:00Z")
The new Optimize FLAC works much more reliably & efficiently compared to the previous workaround using the downloaded tool from the FLAC website however she seems shy.
I noticed the Utils seemed to play peakaboo with me intermittently. I first assumed I must have a few hidden mp3 files in my current selection but as it turns out any selection of 41-48 files or more seems to force the Optimize FLAC option into hiding. I've spanned multiple folders that are completely FLAC and if I select over a certain number of files ...it's gone.
I tried to narrow it down to a specific number, but it varies so I cannot say that it is solely based on the number of files currently selected I was never able to select more than 48 FLAC files.
Note:
- If i selected small portions for the data I could easily get the Optimize to appear & function flawlessly
- Much of my data includes the following characters ²🅴¹🅲⁰🅸 (not sure if that matters)
- Album arts embeded are all jpg ranging from 1mb-3mb at varying resolutions
- None of the selected files have issues with holding / altering tags, skipping or other playback issues
- I am currently using V3.24a (Windows 11) but I can confirm this issue was present on the previous version although I had not tested it as thoroughly until now
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 5, 2024, 4:41pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/2 "2024-02-05T16:41:10Z")
I've tried to reproduce this and also had a hard stare at the relevant code. Unfortunately, I can't reproduce and also don't see what might cause this.
If you have any additional information (or if a file with an extension different from `*.flac` sneaked in), please let me know.
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### Author:  [@mista\_j](https://community.mp3tag.de/u/mista_j)
#### Post date: [February 5, 2024, 5:08pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/3 "2024-02-05T17:08:32Z")
Ok, the problem must be on my end I will keep looking
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### Author:  [@mista\_j](https://community.mp3tag.de/u/mista_j)
#### Post date: [February 6, 2024, 6:53am UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/4 "2024-02-06T06:53:01Z")
Dear God...I found two AAC files with the .FLAC extension
Problem solved. Apologies for the false alarm
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 7, 2024, 2:37pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/5 "2024-02-07T14:37:24Z")
I'm still not sure I understand this. Even if the file was AAC but had the `*.flac` file extension, the menu item should have been displayed.
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### Author:  [@mista\_j](https://community.mp3tag.de/u/mista_j)
#### Post date: [February 7, 2024, 3:55pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/6 "2024-02-07T15:55:08Z")
My guess is i did something wrong with my original converter. The files were originally aac. & i converted them to flac. I redid the conversion from the original aac using audacity & when i selected the files in the same folder the utils was present again.
So i figured that was the culprit
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### Author:  [@Florian](https://community.mp3tag.de/u/Florian)
#### Post date: [February 7, 2024, 3:56pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/7 "2024-02-07T15:56:47Z")
OK, thanks for trying to clarify. I'm moving this to #Support now and we'll watch this closely in case it happens again.
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### Author:  [@system](https://community.mp3tag.de/u/system)
#### Post date: [August 26, 2025, 2:17pm UTC](https://community.mp3tag.de/t/optimize-flac-utils-not-available-in-batch-selections/63690/8 "2025-08-26T14:17:19Z")
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