Patent ID: 8364496
Filing Date: 2013-01-29
Classification: G10L,G11B

Abstract:
1. A signal recording and reproducing apparatus, comprising: an encoder for encoding an input signal to produce a first group of encoded data, and a second group of encoded data used for reproducing a signal of higher quality than a signal resulting from decoding of the first group of encoded data, wherein the first group of encoded data is non-reversible encoded data, and the second group of encoded data is reversible encoded data; recording means for recording record-data, including the first group of encoded data and the second group of encoded data from the encoder, into a recording medium; reproducing means for reproducing the record-data from the recording medium; a decoder for decoding at least the first group of encoded data out of the record-data from the reproducing means; and controlling means for controlling an operation of each part of the signal recording and reproducing apparatus; wherein the controlling means performs control so as to cause the recording means to erase the second group of encoded data in accordance with a command to increase the amount of free storage capacity of the recording medium.