Disk At Once or more properly Session At Once. The laser is never turned off while writing the CD or DVD. This is the preferred mode to write audio CDs since it allows pregaps other than 2 seconds. Not all writers support DAO. DVD-R(W)s written in DAO provide the best DVD-Video compatibility.
Disk At Once edo egokiago Session At Once. Laserra inoiz ez da itzaltzen CDa edo DVDa idazten ari dela. Hori da modu hobetsiena audio CDak idazteko, 2 segundokoak ez diren aurreko tarteak onartzen baititu. DAO ez dute grabagailu guztiek onartzen. DAOn idatzitako DVDak DVD- Bideoaren bateragarritasun onena dute.