AN elderly Victorian couple who acted on a suicide pact said dying together would give them "great peace".

In a pre-recorded farewell message, mesothelioma sufferer Don Flounders and wife Iris said they had no doubt they were making the right decision.

Family found the pair last Friday after they died the night before.

Police are probing the deaths.

Mr Flounders, 81, said his quality of life had become "dreadful" in the last three years.

"I am dependent on Iris and my world has shrunk to this small bedroom," Mr Flounders said in the pre-recorded video.

"This is no life to live.

"We have had a wonderful life together and we can die together and it gives me great peace."

Mr Flounders said the couple resented having to travel to Mexico to buy the euthanasia drug Nembutal in 2008.

Federal police raided the Flounders' home looking for illegal suicide drugs in March 2008.

Heraldsun.com.au believes AFP officers took a diary, but couldn't find the drugs.

Mrs Flounders, who was not terminally ill, said she did not want to live without her husband.

"When we got the drugs in 2008, I thought then that I might not want to live on without Don," Mrs Flounders, 88, said.

"Three years on, my thinking is the same.

"I want to be with Don now and always. We plan to drink the drugs together and die together."

Mrs Flounders said the pair acknowledged their controversial choice and no one had pushed them to make it.

"Some people may criticise us for taking this step, but I can say we’ve made the decision together after a lot of consideration and we are clear it is the right decision for both of us," she said.

Mr Flounders said the drugs had been hidden well before the 2008 raid.

"As I said at the time, there are a lot of rabbit burrows down here in Warragul," he said in the video.

Anyone with personal problems can call Lifeline on 131 114; Victorian Statewide Suicide Helpline (in Victoria) on 1300 651 251; or Mensline Australia on 1300 789 978.