Independent MP Rob Oakeshott has put forward his own ultimatum to the Federal Government over its proposed reform of media laws.
Communications Minister Stephen Conroy is courting the independents to try and push through his plans to increase oversight of journalistic standards and media mergers.
Senator Conroy says the laws he unveiled earlier this week are non-negotiable and if they do not get support by Thursday, he will scrap them.
The Coalition says it will not vote with the Government and now the future of the laws depends of the support of five of the seven crossbenchers, who are considering which way they will vote.
Opposition communications spokesman Malcolm Turnbull said the Government's proposals do not make any sense.
"This half-baked bag of proposals was cooked up last weekend and then presented to the Cabinet and the Labor Party room as a fait accompli," he said.
"The crazy thing about it... [is that] in the midst of this whole set of proposals, there are some important pieces of legislation that should get done.
"Because Julia Gillard has thrown [these] into her assault on press freedom and the establishment of this new bureaucrat ... it is quite likely that the whole package will fall by the wayside."
The package of bills establishing a new media watchdog and a public interest test for future company mergers has .
'Going nowhere fast'
Mr Oakeshott says he is unhappy with the Government's wish to have the full package of legislation rushed through.
He will sit on the parliamentary committee that is considering one part of the media package on regional content.
Mr Oakeshott says if he is not satisfied by Monday's committee hearing, he is not going to back the Government.
"In the end, if that can't be resolved, certainly from my point of view, I'm going nowhere fast with this," he said.
"That would pretty well rule me out completely if we can't resolve the importance of local content."
Fellow independent MP Tony Windsor says he does not believe there is no wriggle room in the Federal Government's media laws.
Mr Windsor says despite what Senator Conroy says, he thinks there is room to manoeuvre.
"I've heard ministers and others say over time 'I can't move, it's rock solid and we can't adjust it' - well nothing is rock solid in politics and neither should it be," he said.
"One of the great benefits of a hung parliament is everybody gets to have their say."
Former and has urged fellow crossbenchers to join him in voting against the reforms.