A method of storing coded video data comprising a plurality of sequences of coded video pictures in an electronic file (100; 140), the method comprising: determining, for a sample description (108; 150) that is in a video data track (104; 144) and associated with at least one sample (110, 111; 152, 153), whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of a first particular type associated with the at least one sample (110, 111; 152, 153), wherein the at least one sample (110, 111; 152, 153) comprises at least a portion of the plurality of sequences of coded video pictures, and wherein the first particular type is one of a plurality of different particular types of parameter sets; providing, in the electronic file (100; 140), a first one-bit flag having a first value indicating that the sample description (108; 150) includes all parameter sets of the first particular type or a second value indicating that at least one parameter set of the first particular type is included in a parameter sets track, the value being based on the determination of whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of the first particular type; determining, for the sample description (108; 150), whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of a second particular type associated with the at least one sample (110, 111; 152, 153), and wherein the second particular type is one of a plurality of different particular types of parameter sets different from the first particular type; and, providing, in the electronic file (100; 140), a second one bit flag having a first value indicating that the sample description (108; 150) includes all parameter sets of the second particular type or a second value indicating that at least one parameter set of the second particular type is included in a parameter sets track, the value being based on the determination of whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of the second particular type, wherein whether the sample description (108; 150) includes all parameter sets of the second particular type is independent of whether the sample description (108; 150) includes all parameter sets of the first particular type. determining, for a sample description (108; 150) that is in a video data track (104; 144) and associated with at least one sample (110, 111; 152, 153), whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of a first particular type associated with the at least one sample (110, 111; 152, 153), wherein the at least one sample (110, 111; 152, 153) comprises at least a portion of the plurality of sequences of coded video pictures, and wherein the first particular type is one of a plurality of different particular types of parameter sets; providing, in the electronic file (100; 140), a first one-bit flag having a first value indicating that the sample description (108; 150) includes all parameter sets of the first particular type or a second value indicating that at least one parameter set of the first particular type is included in a parameter sets track, the value being based on the determination of whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of the first particular type; determining, for the sample description (108; 150), whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of a second particular type associated with the at least one sample (110, 111; 152, 153), and wherein the second particular type is one of a plurality of different particular types of parameter sets different from the first particular type; and, providing, in the electronic file (100; 140), a second one bit flag having a first value indicating that the sample description (108; 150) includes all parameter sets of the second particular type or a second value indicating that at least one parameter set of the second particular type is included in a parameter sets track, the value being based on the determination of whether the sample description (108; 150) in the video track (104; 144) includes all parameter sets of the second particular type, wherein whether the sample description (108; 150) includes all parameter sets of the second particular type is independent of whether the sample description (108; 150) includes all parameter sets of the first particular type.