RTÉ is planning to broadcast a drama based on the 1981 Stardust fire disaster despite a plea by victims' families for the national broadcaster not to air it.
Several relatives of the 48 young people who died at the Valentine's Day disco on Dublin's northside claimed they were never consulted by RTÉ about the tragedy.
The two-part series is being screened on the 25th anniversary next month.
RTÉ insisted tonight it understood the sensitivity of the subject matter and reassured families that its drama would be a fitting tribute to victims and survivors of the Artane inferno.
However, Gertrude Barrett, who lost her 17-year-old son Michael in the Stardust fire, said she was disgusted and appalled at RTÉ over the drama.
"It's a disgrace RTÉ is cashing in on our grief. They have been very insensitive in their handling of the victims' families. We all found out about this drama from the newspapers," she said.
One woman, whose three children perished in the tragedy said she was disappointed and called for justice for the victims.
Brid McDermott, who lost William, 22, George, 18 and Marcella, 16 in the fire said: "The RTÉ doesn't know everybody's stories. They don't know my story."
RTÉ said it held a meeting in September with the Stardust Legal Challenge Committee, which represents the majority of victims' families.
The station agreed to screen the drama series for victims' families prior to broadcast and to take on board all concerns of the families about technical details of the fire.