Kafeel allegedly drove a flaming vehicle into the Glasgow airport building on June 30 in a failed terror attack in Britain.
The Forensic Sciences Laboratory, which is decoding the 120 GB hard disk, states that most of the videos were messages and commentaries by Al Qaeda leaders, including Osama bin Laden.
The police claim these videos explain how Kafeel may have been inspired to carry out the attack.
The FSL also found the video of Wall Street Journal journalist Daniel Pearl's execution.
People who knew Kafeel said he discussed the Pearl incident with them on several occasions. They claim he did not feel sorry for Pearl, but thought it was necessary to send a strong message across to the West. His friends say Kafeel always felt his life would be complete only if he did something for his faith.
Videos of Russian soldiers being tortured by terrorists in Chechnya have also been found on the hard disk.
Meanwhile, the Bangalore police have discovered a mysterious transaction by Kafeel. The police say Rs 11 lakh (Rs 1.1 million) and two cheques were deposited in Kafeel's account a few days before his departure to Britain from Bangalore.
However, the police are unable to trace the person who made the deposits as the address given in the bank's records is false.