When You Write With Varirec; Advantages Of Burn-Proof Technology - Plextor PX-320A User Manual

Section 4. Using Your PlexCombo

When You Write with VariRec

VariRec writes in either Track-at-Once (TAO) or Disc-at-Once (DAO) mode. It
writes CD-DA (digital audio) on CD-R media at 4X speed or 1X speed, rather than
at the full speed of the drive. For this reason, audio recording using VariRec takes a
bit longer than a standard audio recording.

Advantages of BURN-Proof Technology

The PlexCombo 20/10/40-12A incorporates BURN-Proof (Buffer Under-Run Proof )
technology, which guarantees that you can write discs at high speed, and still use
your computer for other tasks while you're writing.
The Problem: When you use a CD Recordable or CD ReWritable drive to write to a
CD-R or CD-RW disc, the disc needs a constant, steady flow of data to make a
successful write. If this flow is interrupted, you wind up with a disc that is unusable.
You've just created a coaster for your table!
To prevent the interruption of data, every CD-R/RW drive has a buffer, a memory
chip that acts as a kind "holding area." (Typically, the buffer size is 2 MB or 4 MB.)
However, this buffer can be emptied quickly when you write at high speeds. It can
also be emptied if you use other applications (like surfing the Internet or playing
games or watching movies) while writing; or if your source drive cannot read data
fast enough because of its read ability or because the source disc is poor quality and
read errors slow down the data streaming. Any of these factors can produce what is
known as a "buffer underrun error." Simply put, the buffer is drained of data, the
flow to the disc is interrupted—and you wind up with a useless disc.
The Solution—BURN-Proof: This revolutionary technology compensates for any
interruption in data flow to the disc. BURN-Proof technology "remembers" where
writing stopped on the disc when the data flow was interrupted, then restarts writing
in the same place once the data is available again. The result is that your disc is
written successfully.
What BURN-Proof Means to You: BURN-Proof technology in your
PlexCombo 20/10/40-12A means you can safely use your computer for other things
while you're writing to a CD-R or CD-RW disc. It reduces the dreaded "coaster
effect," and lets you multitask freely and easily without bringing the burn to a
screeching halt. All of this is done seamlessly, so you successfully create CDs on the
first attempt.
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PlexCombo 20/10/40-12A Installation and Users Manual