"It is not in any law book in Indonesia. There is no legal avenue for it," said Wirawan Adnan, who defended some of the 2002 Bali bombers now on death row in the same prison as Corby.
"But sometimes the impossible can happen."
However, Wiswantanu Ida Bagus, the prosecutor in Corby's trial last year said: "It is not possible to reopen the case".
The trial's presiding judge Lindon Sirait, who handed Corby her original 20-year sentence, said the supreme court's decision had vindicated him.
"It's good that they upheld my verdict and sentence," he said. "It means I was correct from the start."
Sirait also doubted Corby had any realistic legal avenues to pursue.
But Corby's mother Rosleigh Rose and father Michael Corby remain hopeful.
They visited their imprisoned daughter today, taking with them her half-sister Melanie and a bunch of flowers.
Rose declined to speak to reporters saying she was with the Nine Network's A Current Affair program.
Michael Corby described Schapelle as "a strong girl" who was trying to cope.
"She is just a poor bloody kid who is innocent," he said.
"There are other avenues. I don't know what other avenues there are, but there must be."
He said news of the appeal's failure had devastated his daughter, but not Prime Minister John Howard, Foreign Minister Alexander Downer or Australian Federal Police Commissioner Mick Keelty. "They got what they wanted," he said.
In Canberra, Mr Howard declined to comment on the reinstatement of Corby's sentence saying: "I am not going to place myself above the Indonesian judiciary. That is a matter for the Indonesian court."
Indonesia's Foreign Ministry said the case would not affect diplomatic relations between Jakarta and Canberra.
Spokesman Yuri Thamrin said the question of a pardon for Corby would be solely at the discretion of President Susilo Bambang Yudhoyono, who has launched tough anti-drugs policies since taking office in 2004.
Thamrin doubted Corby would get "special treatment" from the head of state.
A spokesman for the Indonesian Attorney-General's Office, Masyhudi Ridwan, said that if Corby did try to seek clemency she would first have to "ask for forgiveness".
Corby's Jakarta lawyer Hotman Paris Hutapea has threatened to quit the case saying it is now "in ruins".
However, Siregar promised to go on "with this case until we die".
"I still believe that my client is innocent," he said.
He said now that the appeal decision had been handed down, Corby was eligible for small sentence reductions routinely granted to prisoners in Indonesia.
The next round of prisoner remissions will be in August for Indonesia's Independence Day.
In Brisbane, Robin Tampoe, a lawyer who once acted for Corby said she now needed a legal miracle.
"Unless something absolutely extraordinary happened now that maybe would create the ability to reopen the trial or have a new trial allocated, she's going to sit there for quite a while to come," Tampoe told ABC Radio.