For sure the surround sound combined with the lossless high-resolution audition introduces you into a world of perfection, it reveals a realistic acoustic experience that will change your way of perceiving music. The concept of what sounds "good" can be very subjective. Lossy compression is a compromise between sound quality and the file size limitations of digital music distribution platforms. "Mastered for iTunes" from Hi-Res Digital Master is Apple's latest encoding methodology. However lossy is not lossless. These original albums are no more available on iTunes or any other platform due to lack of Hi-Res quality distribution, despite high fidelity mastering conversion.