1. A method for execution by a dispersed storage processing module, the method comprises: receiving a plurality of requests to record a broadcast of data; encoding the data using an error coding dispersal storage function to produce a plurality of sets of encoded data slices when the data is broadcast and in response to a request of the plurality of requests; generating a unique retrieval matrix for each of the plurality of requests based on an identity of a requesting device and the error coding dispersal storage function to produce a plurality of unique retrieval matrixes; and storing the plurality of sets of encoded data slices and the plurality of unique retrieval matrixes in a dispersed storage network (DSN) memory as a plurality of unique copies of the data.