A digital recording apparatus includes a compression device that performs, every
time a signal corresponding to one field is inputted, compression processing using
a compression rate stored in by-channel compression rate storage area, corresponding
to the inputted signal, in a storage device. A compression rate control device
updates, every time the signal corresponding to one field has been compressed by
the compression device, the compression rate stored in the by-channel compression
rate storage area, corresponding to the inputted signal, in the storage device
to such a value that an amount of coding after the compression approaches a predetermined
target amount of coding on the basis of the amount of coding after the compression
and the target amount of coding.