LaCie Slim DVD±RW Drive User Manual
FireWire / LightScribe / Toast 7 Titanium
... DVD±RW Writing Methods
Disc at Once (DAO) –
A DVD writing process in which the entire DVD is recorded in one session, and data cannot be
added after the recording is finished. Differs from the CD-R DAO method because the lead-in, data area and lead-out areas
are all written sequentially.
Incremental Recording (IR)
– A DVD writing process that is similar to the Session at Once (SAO) CD-R writing method; files
may be added directly to the DVD-R disc one recording at a time, instead of recording the files to a hard drive before writ-
ing the disc. The minimum recorded size, though, must be at least 32KB (even if the file to be recorded is smaller than that),
and capacities and write speeds are decreased due to the overhead of combined lead-in/out areas and data. Also, the disc
must be finalized before it may be played back by a drive other than the drive recording the disc.
Multi-Border Recording (MBR)
– A DVD writing process that is very similar to IR, MBR allows you to make an IR disc and
then play the disc back on a device that recognizes this type of recording method. MBR creates a very short boundary zone
around a recording session so a compatible player or DVD-ROM drive does not attempt to play beyond the border of the
recorded area, instead allowing the unfinalized disc to be read by a player that supports this recording method.
Restricted Overwriting (RO)
– A DVD writing process that only applies to Slim DVD±RW discs. With this method, if a disc
has already been written to, new data segments can be randomly inserted anywhere within the recorded boundary. New
data, however, can only be added to an area of the disc that has already been recorded over and from the point where the
last session was stopped.
Session at Once (SAO)
– A DVD writing process which is similar to DAO, where all of the information is written in one ses-
sion, but SAO allows for the ability to begin another session and record at a later time. This mode allows for greater control
of the recording process than Packet Writing (PW) or TAO, and more disc space can be utilized because there is no need
for gaps between tracks.
Packet Writing (PW)
– A writing process that is very useful for data backup. Buffer underrun* is impossible in this mode,
because the data is written in “packets” of a few KBs.
... CD Writing Methods
Disc at Once (DAO)
– A CD writing process in which the entire CD is recorded in one session, and data cannot be added
after the recording is finished. This mode allows for the most control of the recording process for audio CDs because the gap
between tracks can be set and the maximum capacity of the CD can be utilized.
Packet Writing (PW)
– A CD writing process that is very useful for data backup, but cannot be used to write audio CDs.
Buffer underrun* is impossible in this mode, because the data is written in “packets” of a few KBs.
Using Your LaCie Drive
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