The program is designed to adapt the volume of MP3 files.
With MP3Gain, you normalisierst the volume of MP3 files with just a few clicks.
You can adjust all directories with this program so that each MP3 file is revised and you have no differences in the volume of individual files. To the Nomalizing, as this process is called rendering, you choose the directory where your MP3 files are, the program will make then automatically the adjustments. It is important of course that there is no loss of quality. MP3Gain is a professional in the field.
To use MP3Gain on German, you have to select that language pack during installation.
This version is clearly with each MP3 file, stores them in the selected volume without loss of quality.