Parents have been warned they could pay the price if they fail to keep an eye on their children's internet activity.
The warning follows the out-of-court settlement of 14 illegal music uploading cases for amounts averaging just under $25,000.
The International Federation of the Phonographic Industry (Hong Kong Group), which caught the offenders after internet service providers (ISPs) were compelled by court order to hand over their details, said all were children of the subscribers, aged 12 to 19.
They were tracked down in the first wave of industry action, aimed at squeezing out illegal uploading. A second wave, involving more record companies, is about to start.
Director of Intellectual Property Stephen Selby urged parents to keep an eye on their children.
'Many parents want to use a computer to keep their children from wandering on the street,' he said. 'But they should ask their children what they have been doing. A high level of knowledge about computers is not required for parents to do this task.'
IFPI Hong Kong chief executive Ricky Fung said the group had found 50 more potential cases using WinMX file-sharing technology last week and would seek court orders next week asking ISPs for personal details.