Well, an editor is a strong word, rather a tool for creating ringtones. With that, a very convenient tool.
The program is able to remake MP3 files without decompression, which is its main advantage. You can take a file and cut it into pieces. For convenience, a special stopwatch can be displayed on the program screen, which will show the beginnings and ends of the slicing pieces and the current position with an accuracy of thousandths of a second. There is also an automatic sound level equalizer. By the way, the program can be used not only for cutting empetrishki, but also for recording audio from someone's source (microphone or Wave Mapper) immediately to MP3, if such a codec is installed in the system.
After installation, the program can be rewritten to a USB flash drive – it runs perfectly from there. I also found another useful function of the program – cutting one track into several according to this Sheet. There are sets like this (DJs especially like to record like this), in which all the tracks go in one continuous track with a special file attached, which describes where and for how long these tracks come from) – that's how the program can automatically cut such sets into tracks.
Is free: http://mpesch3.de1.cc/mp3dc.html. Just in case: http://www.izone.ru/multimedia/av-editors/mp3directcut-download.htm .