With a near complete shift from tape-based digital (DAT) and analog recording formats to file-based digital audio recording formats, the choices of audio file types have exploded. In the recent past, audio engineers would set their DAT recorder to 48 kHz, record its two audio tracks as either dual-mono or stereo, and would then concentrate on the business of getting great sound. With a file-based work flow, there are other elements that need to be considered to ensure a smooth transition from the field or studio to the editing suite.
DVD-RAM is a convenient interchange medium between audio recorders and post production. While DVD-RAM disks share the same size and capacity as DVD-R, DVD+R, DVD-RW, and DVD+RW disks, it is easier to think of DVD-RAM as an "optical hard disk".