How to merge multiple mp3 files into single file

To combine multiple mp3 files into single file, that is easy by using command prompt.

Scenario:
Let's say you have 3 mp3 files want to combine into single mp3 file,

1) Open command prompt console
2) go into the directory where those files is.
3) Enter the command code as below

Code:
copy /b track1.mp3 + space.mp3+ track2.mp3 c:\new.mp3

NOTE: the command prompt console must be in directory that where the mp3 is. Otherwise you need to put it before the filename.

4) Follow the command code, then you will get a "new.mp3" file in your C:\ drive.

** copy /b is copy the files in binary format