When music downloading was introduced, what impact did that have on the demand curve for CDs? Explain.

After the introduction of music download system, the demand for CDs and for other music system has decreased because people shift towards the use of music systems. Newly introduced music download system was easy to use, and it was much affordable in comparison to the CDs system. Thus, the introduction of music download system changes the market trend and overall market condition. Thus the curve of demand has shifted towards the alternative of CDs. On the other hand, the market for music download system has increased with the passage of time. It shows that innovation and new techniques can replace the demand for similar products.