Release Issued by PLDS:

PLDS Shows the Constant Speed of Lite-On with the Blu-Ray DH-4B1S

PLDS (Philips & Lite-On Digital Solutions) released one of the first Blu-ray drives on the market, and this month they are rolling out it’s successor, the DH-4B1S - which offers twice the speed at a more consistent rate.

The internal Lite-On DHX-4B1S burns data to Blu-ray media at 4X using the inbuilt technology ‘Constant Linear Velocity’ (CLV) which allows data to be transferred at a consistent 4X rate throughout the burning process. This is a reassuring and speedy alternative to some other drives on the market that may claim 6X burning but use ‘Constant Angular Velocity’ (CAV) – a strategy that starts data transfer at a slower rate and gradually builds to it’s top speed only at the end of the session (thus in reality the average speed is much lower than 6X).

Many users don’t use the full capacity of a disc when they make a back up. “If you use only 75-80% of the disc capacity, a 4X CLV writing strategy will be a quicker solution then a 6X CAV strategy,” says Marketing Manager Jelmer Veldman. “We see a growing market acceptance for Blu-ray as the format of choice for High Definition content playback and for high volume archiving. With this 4X BD writer Lite-On delivers a faster solution for burning data to Blu-ray Discs.”

The DH-4B1S will be available across Europe from the end of May however a recommended price has not yet been confirmed.

A summary of reading and writing speeds for the DH-4B1S can be seen in the following table:

	Write	Re-Write	Read
BD-R	4x
BD-RE		2x
BD-ROM			4x
DVD+R	12x	8x	12x
DVD-R	12x	6x	12x
DVD+/-R DL	8x		12x
DVD+/- RW			12x
CD-R	40x		40x
CD-RW		24x	40x

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