Two men charged under the Terrorism Act after raids in West Yorkshire have been remanded in custody.
The men were arrested in a Met Police operation
Rizwan Ditta, 29, and 25-year-old Mohammed Bilal, both of Halifax, appeared before Westminster Magistrates' Court in London.
They are due to appear at a hearing on 6 February via video link from prison.
Mr Ditta faces 13 charges connected to possessing computer files and Mr Bilal is accused of two offences in relation to a disc, a computer file and CDs.
The men were arrested following an inquiry led by the Metropolitan Police.
Anti-terrorism officers from Metropolitan and West Yorkshire Police forces arrested the men in the Pellon area of Halifax on 23 January.
'Sound of Jihad'
Mr Ditta, of Royd Terrace, was charged under section 57(1) and 58(1) of the act with having items for a purpose connected with terrorism or that are likely to be useful to a person committing or preparing an act of terrorism.
He is alleged to have possessed several computer files with titles such as Attack Against American Troops, Sound of Jihad, and Hamas Bomb.
Mr Bilal, of Thrum Hall Close, was charged under 58(1)(b) of the act with having items likely to be useful to a person committing an act of terrorism.
It is alleged that "without reasonable excuse" Bilal had a record containing information of a kind likely to be useful to a person committing an act of terrorism, which was five copies of a CD entitled The Manhattan Raid and a computer file of the same title.
He is also accused of having possessed a disc containing a clip entitled Al-Qaeda.