the cd-rw402 is able to master red book standard cds with disc at once record mode, a unique toc edit function and display of isrc (international standard recording code) and rid (recorder identification data). balanced analogue xlr i/o interfaces, and unbalanced analogue, aes/ebu /spdif and toslink optical digital interfaces are included. separate and common audio output signals from the two decks can be connected. a 25-pin parallel machine control port is incorporated, as is a ps/2 computer keyboard connector to input cd-text.