Abstract: A program recording/reproducing system demultiplexes predetermined program signals from multiplexed signals into which a plurality of program signals are time-division-multiplexed per predetermined multiplexing unit, and records these demultiplexed program signals. The predetermined program signals are extracted from the multiplexed signals, and the program signals are recorded. The program signals are read out of a recording medium, and the readout program signals are outputted so that an output interval on each multiplexing unit becomes coincident with a time interval in the multiplexed signals. A null packet is inserted in between the two readout program packets in the same state as when recorded, thereby troubleshooting a buffer overflow or underflow occurred during the reproducing process.

Abstract: Four media data coding and multiplexing apparatus 1 to 4 are connected, a video signal 100 having a large information amount is processed in parallel in the media data coding and multiplexing apparatus 1 to 4, other media data pieces of an audio signal 240 and a data signal 340 are processed in the media data coding and multiplexing apparatus 4, and a multiplexing section 44 of the media data coding and multiplexing apparatus 4 combines the signals and output multiplex streams 119, 129, and 139 output from other media data coding and multiplexing apparatus 1 to 3 into one output multiplex stream 149 finally.

Abstract: The invention provides serum-free media for the culture of drosophila insect cells. The serum-free media of the invention comprise a basal medium to which is added yeast hydrolysate, and albumin or dextran. In another embodiment of the invention, albumin hydrolysate is added to the basal medium, in addition to the aforementioned compounds.