Ever since the record industry began cracking down on illegal file-trading services like the now-defunct Napster, consumers looking for a legal way to download music online have been stymied by an industry which seemed more interested in stonewalling the digital music movement for as long as possible than in finding a way to turn the new technology into profit. Now, a new site called MusicNow has been launched, aimed at 30-to-50-year-olds who want digital music, and won’t mind paying for it. The fees are reasonable – $10 a month for unlimited downloads, and 99 cents for a single song – and the company behind the site hopes it will finally begin to attract music consumers with money to spend.