
The global trend in this direction has seen content owners issuing 'notice and terminate' notices to ISPs informing them of infringing accounts and demanding termination of those accounts.
Global recording industry lobby group IFPI has strongly signalled it will target ISPs through lobbying governments.
“Don't underestimate the power of this push,” Weatherall said.
The fact that a ISP level filtering of internet content may be impossible to implement effectively doesn't mean it won't happen she said.
“Governments like to look like they're achieving things. Even if it doesn't look like it will work, they may do it anyway.
“We're waiting for [Communications Minster] Stephen Conroy's report on ISP-level filtering. It's not clear yet if he's talking about a blacklist of porn sites, or something more general.”
It's possible that the content filtering laws will be watered down, just as the laws about mobile and streaming content were watered down to a “complaint and takedown” system, she said.
Weatherall sees problems arising in the implementation and cost.
“But governments like to be seen to be doing something to protect the children,” she said.
The industry's attention has turned to content filtering after the music industry made major concessions on the DRM (digital rights management) front in 2007.
But rumours of the 'death of DRM' over the past year have been greatly exaggerated, Weatherall said.
While the four major music labels had dropped DRM for sales through the iTunes and Apple stores, Weatherall said the music industry was “never very good at DRM” - since music has always had a more expensive, DRM-free option available to the public – CDs.
“If you show me the movie industry or subscription TV going DRM free, then we can talk about the death of DRM,” she said.