Band 7+: The graph compares the sales of different music formats from 1994 to 2006. Summarize the information by selecting and reporting the main features and make comparisons where relevant.

The line graph demonstrates various music sales in the US, between 1994 and 2006.

Overall, it is clear that digital music experienced an upward trend, while the opposite was true for CDS and Cassettes. Another noteworthy point is that CDS was by far the most popular music at the beginning, whereas digital music became the most chosen type at the end of the given period.

In-depth analysis reveals that more than 400 million CDS were sold in 1994, which was followed by reaching a high of 800 million in 2000. After that, the figure declined rapidly to around 250 million at the end of the period. Similarly, sales of cassettes started at 400 million and then decreased sharply to about 50 million in 2000. However, there were not any person who wanted to buy cassettes at the end.

In terms of digital music, there were not any sales of this music format from 1994 to 2000. Following this, a slight increase of almost 20 million witnessing in the next two years, before growing sharply and reaching a peak of approximately 780 million in 2006.