(4) Other Intangibles

Payments for Prepaid Residual Expenses

We paid $0.2 million for prepaid residual expenses during the six month period ended June 30, 2012. For the period from May 24 through June 30, 2011, we made payments totaling $0.4 million to several ISGs in exchange for contract modifications which lower our obligations for future payments of residuals to them. For the period from January 1 through May 23, 2011, we made payments totaling $0.5 million to several ISGs in exchange for contract modifications which lower our obligations for future payments of residuals to them. These payments have been assigned to intangible assets in the accompanying Consolidated Balance Sheets and are amortized over their expected useful lives.