Patent ID: 8255527

Claim:
A method comprising: storing in a storage medium of a streaming server an obligatory advertisement comprising a first video stream and a first audio stream, transmitting the first video stream and the first audio stream to a multimedia player so that the obligatory advertisement is played in the multimedia player in conjunction with non-advertising content to be sponsored by the obligatory advertisement, the streaming server determining if less than all of the first video stream and/or first audio stream has been transmitted to the multimedia player, and transmitting to the multimedia player a message indicating that playing of all the obligatory advertisement is required upon determining that less than all of the first video stream and/or first audio stream has been transmitted to the multimedia player; and storing in the storage medium of the streaming server another advertisement comprising a second video stream and a second audio stream and transmitting the second video stream and the second audio stream to the multimedia player in a manner that the second video stream and the second audio stream are played in the multimedia player in conjunction with the non-advertising content and the obligatory advertisement.