Arab television station al-Arabiya has broadcast a videotape showing alleged al-Qaeda militants preparing a bomb attack in the Saudi capital, Riyadh.
The November bombing caused widespread devastation
Two of the men shown were identified as the bombers who carried out the 8 November attack.
Eighteen people - mainly Arab workers - died and more than 120 people were injured in the suicide bombing.
Several tapes said to be by al-Qaeda militants, including Osama Bin Laden, have been aired by Arab TV lately.
The video shows fighters training, making explosives and finalising preparations for the attack, US television channel CBS reported.
These preparations include surveillance of the Muhaya compound in Riyadh - where the attack was carried out - and the painting of a vehicle in the colours of the Saudi military.
Several tapes of Bin Laden have been aired by Arab news channels
Saudi security officials and eyewitnesses from the November attack said the vehicle which smashed into the compound and exploded looked like a police car.
The two alleged suicide bombers - identified by Saudi officials as Ali Hamed and Nasser Abdullah - are shown smiling and wielding guns.
Both men died in the attack and were identified through DNA, the Saudi interior ministry said shortly after the bombing.
Al-Arabiya said the 90-minute tape was released on an al-Qaeda website.
Last month, Arabic news channel al-Jazeera broadcast a tape said to contain the voice of Osama Bin Laden.
In it he reportedly urged Muslims to continue a jihad, or holy war and condemned Gulf Arab leaders who supported the US-led invasion of Iraq.
Last November US Defence Secretary Donald Rumsfeld condemned both al-Jazeera and al-Arabiya for their reporting in Iraq.
He said he had seen evidence that the two networks had been co-operating with insurgents in the country - allegations that both networks have denied.