Common wisdom is that mp3 are already highly compressed which means it does not make sense to compress them further, for instance to zip them before sending them to a friend. But did you know that there is still room for improvement, at least if the encoding settings were not optimal to being with?
MP3 Packer is a free software for Windows and Linux that rearranges data in mp3 files to generate the smallest possible mp3 file but also for other purposes such as turning VBR files into CBR files which can be handy if players are used that do not support VBR.
The application is offered as a command line version and a version with a graphical user interface on Windows. Winmp3packer, that's the name of the gui version, has already been configured to reduce the size of mp3 files loaded into the application.
All it takes to use it is to select a folder or folders with mp3 files before clicking the process button. The application scans all mp3s located in the folders and will process them if they meet certain criteria.
A log is displayed in the end giving information about the processed files and the decrease in size.
We have run the application on three albums and it managed to decrease the size by about 5 Megabytes or 1.4%.
That may not look like much but it could add up if thousands of songs are stored on a device. The mp3 files need to be encoded with CBR for this to have any effect.
You may have noticed that the program offers additional options in its interface. Users can switch the output type from VBR to CBR, configure a fixed minimum bitrate, strip non-mp3 data from files and set a different output folder to avoid that files are overwritten by the application.
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.