Introduction
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Multi-session
The recording of lead-in/data/lead-out is referred to as one session. The Disc-At-Once
method is also referred to as “Single Session”, because the disc is only recorded once. A
disc that has had multiple additional session recorded onto it using the Track-At-Once
method is called “Multisession”.
Packet Write
The Packet Write recording method was developed. It differs from Track-At-Once or
Disc-At-Once in that data is recorded in small fixed sectors of 64k bytes, known as
packets.
The advantages of this method are elimination in overhead per session and the
elimination of buffer under run errors. This method, however, cannot be utilized for audio
data. A number of formats, such as UDF and CD-R FS, can be used when recording
using the Packet Write method.
