Having finished her homework, Ma Li wants some music for relaxation. As usual, she starts her computer and goes to Baidu.com to download music files. But this time she is surprised when an announcement about protecting songs' copyright appears on the screen. The age of free music and movie downloads may have come to an end as Web companies like Baidu are accused of pirating  copyright. Lawsuits   have been filed against four websites offering free downloads. In September 2005, a Beijing court ordered Baidu to pay the recording company Shanghai Push compensation   for their losses. Baidu was also told to block the links to the pirated music on the websites. This caused a heated discussion on Interact file sharing.  "Baidu's defeat in the lawsuit shows it is hot fight to get copyrighted songs without paying." Downloads may face lawsuits or fines," said an official.  Like many teens, Huang Ruoru, an 18-year-old girl from Puning in prefix = st1 /GuangdongProvince, doesn't think that getting music from websites is wrong. She always shares her favorite songs downloaded from Baidu with her friends. When told about the lawsuit, she began to feel a little guilty about getting others' work without paying.  However, other teenagers have different ideas. Wang Yafei, a senior 2 girl from Jinan, ShangdongProvincepointed out that file sharing is a good way to promote pop singers. " If I download a song and really like it, I will buy the CD," she said. "So what the recording companies really concentrate on is improving their music, rather than pursuing file-shares." According to the passage, people like to download music largely because   _  .
CDs are too expensive it's convenient and free of charge music on line is always pleasant to hear it is a good way to promote pop singers