Assuming CD quality, I have 44100 samples/sec in 16 bit. For stereo this is 176400 Bytes/sec or 10584000 Bytes/minute. The smallest SDRAM with availability and second source is 64Mbit x 8 = 67108864 Bytes. So I will have about 6 Minutes and 20 seconds (in NA units this is 6 1/3 minutes ;-) time warp rewind time. This should be more than enough to listen to the missed news and not many songs are longer than 6 minutes, unless your really like November Rain or Pink Floyd and have a radio station that plays the songs to the very end and not only half </rant>.