Merges zipped mp3 files comprising a mix/album without re-encoding (using mp3cat).

This PowerShell script expects a zip file containing multiple mp3 files to be merged into a single mp3 file. It will do so without re-encoding, preserving the original audio quality. Specifically, the script will do the following:

1. Extract the mixed zip file into the %TEMP% folder.
2. Recursively look for an mp3 file in that folder.
3. Run mp3cat on the folder where the first mp3 file was found.
4. All mp3 files in the folder will be merged into C:\foo\bar.mp3, where C:\foo\bar.zip is the input zipped mix file.

Make sure that mp3cat is either in your PATH or in the script's working folder.

Merge-ZippedMix.ps1 mix.zip

• Both CBR and VBR mp3s are supported (by virtue of mp3cat).
• The ID3 tag of the first mp3 file will be used for the merged file (using mp3cat --tag).

If you have multiple mix zip files in some folder and you'd like to merge all of them, try:

$mixes = Get-ChildItem "C:\MixFolder" -Filter *.zip
$mixes | foreach { .\Merge-ZippedMix.ps1 $_.FullName }