AMP is a program for compressing audio WAV files and saving them in MP3 format. It offers both constant and variable bitrate encoding, batch processing, selection of existing or creation of new output folders, WAV and MP3 files preview, creating or removing ID3 tags, filtering (both low-pass and high-pass filters are available) and selection of output mode (mono, stereo or joint stereo). Such wide range of options allows creating MP3 files that precisely match desired quality to file.