The number of legal sites quadrupled to more than 230 last year, while the music catalog doubled to more than 1 million songs, according to the International Federation of the Phonographic Industry (IFPI), which represents 1,450 record companies.
In addition, worldwide online music sales shot up by a factor of 10 in 2004 to more than 200 million paid-for downloaded tracks.
The IFPI added that the fight against hacking and illegal downloads has made significant progress, as consumer attitudes and copyright law has changed.
The number of legal music sites quadrupled to over 230 in 2004, while the available music catalog has doubled to more than 1 million songs during the same period, it said.
The IFPI, which represents over 1,450 record companies globally, said the supply of music available digitally is proliferating across online and mobile phone platforms.
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