GroupComputer
software
£m
Other
£m
Total
£m
Cost
At 1 April 2012212.19.6221.7
Additions36.10.836.9
Disposals(41.9)(41.9)
Currency translation differences0.10.1
At 31 March 2013206.310.5216.8
Additions40.10.140.2
Disposals(17.6)(17.6)
Currency translation differences(0.1)(0.1)
At 31 March 2014228.810.5239.3
Amortisation
At 1 April 2012129.03.2132.2
Charge for the year22.50.823.3
Disposals(38.6)(38.6)
At 31 March 2013112.94.0116.9
Charge for the year24.00.824.8
Disposals(17.6)(17.6)
At 31 March 2014119.34.8124.1
Net book value at 31 March 2014109.55.7115.2
Net book value at 31 March 201393.46.599.9

The 'other' intangible assets category relates mainly to customer contracts, customer lists and capitalised development expenditure.

At 31 March 2014, the group had entered into contractual commitments for the acquisition of other intangible assets amounting to £29.4 million (2013: £13.2 million).

Company

The company has no other intangible assets. The company had no contractual commitments for the acquisition of other intangible assets at 31 March 2014 or 31 March 2013.