A method of performing lawful interception of a multimedia call between two or more terminals. The resultant waste after stabilization is deemed suitable for on-site reuse, off-site reuse or disposal as RCRA non-hazardous waste. Luma and chroma components could potentially have different prediction modes. The disposable positive displacement pump also includes a piston drive unit configured to reciprocally drive the rolling diaphragm to move fluid in or out of the fluid chamber. 4 eV, and a HOMO energy level of the second polymer light-emitting layer is higher than the HOMO energy level of the first polymer light-emitting layer.