A former PE teacher and cricket coach from Sussex has admitted distributing child pornography on the internet.
Peter Watts, 37, of Upper Dicker, near Hailsham, admitted nine charges, having already pleaded guilty to 35 charges of making indecent images of children.
Watts, who had a previous conviction for internet porn charges in 2001, asked for 3,541 similar offences to be taken into consideration.
He will be sentenced in September after a psychiatric report has been prepared.
On Monday Lewes Crown Court heard the charges Watts admitted related to a period of time between 19 October 2002 and 27 January 2004.
Watts was remanded in custody until sentencing on 20 September.
The judge told him a custodial sentence was "almost inevitable".