A lossless compressed audio format, it is a way to compress as it is without any omitted voice. It is an image, such as the ZIP format to use when compressing a regular file. In iTunes, Apple Lossless format is available. Audio and CD lossless compressed audio format in (Apple Lossless), there is no degradation of sound quality. In other words, it will be exactly the same sound quality as CD. In addition, it follows that the same sound quality (AIFF, WAV) with non-compressed audio format. Furthermore, lossless audio format from (Apple Lossless), we can convert the audio format of the other, it will sound as if it is taken directly from the CD.