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» Channels :: Optical Storage
BenQ DW830A DVD+R Dual-Layer Preview
By Justin Ong
Category : Optical Storage
Published by Jimmy Tang on Wednesday, 12th May, 2004


Every once in a while, a groundbreaking innovation comes along and reshapes the market field in a major way. In the optical storage business, we've seen how the introduction of DVD '+' format led to the hastened pace of DVD write speed as a result of its involvement in the competitive optical storage market. The DVD-ROM technology that we've come to embrace didn't streamed into our lives without its share of hiccups. In fact, the formation of the DVD-ROM standard can be described as a roller-coaster ride due to the disputes amongst the major manufacturers on the persistence of their involvement in the development and brand authority in the final DVD-ROM format. Despite of all the scuffling (it's still ongoing even up till now), we're mighty glad the DVD-ROM standard was materialized to evolve into what it is today, a high capacity storage format well suited for data and entertainment purposes. But our thirst for data storage doesn't just end with the 4.7GB storage space offered by DVD±R/RW discs. In this day and age where information can be had and exchanged effortlessly all in the blink of an eye (the growing availability of broadband access is also a major push factor as well), DVD storage as an affordable, compatible and highly portable solution has been an option adopted by many for quick and easy data backup and exchange.

Given the rise in optical storage demands and the ability of nearly all existing DVD drives to read pressed Dual-Layer media (DVD9), it's a natural step forward in researching and developing recordable Dual-Layer media. But, this advancement won't be a walk in the park. The primary hurdle is to keep this new format (DVD+R DL) compatible with existing DVD set-top players and DVD-ROM drives.

"But DVD drives can read pressed Dual-Layer DVDs right? It should be quite easy to get them to read recordable Dual-Layer DVDs, isn't it?"

Well, we would have been glad if that was the case, but in reality, it isn't as straightforward as one would imagined - though they sound like the same thing. From the naked eye, it's actually impossible to distinguish between a Dual-Layer and a Single-Layer DVD disc. This makes it one of the biggest technical challenge as it's hard to imagine how you could write to two different layers on the same side of the disc at the same time. If you're just interested in the increased capacity, then this is probably nothing spectacular. For the rest of us who's interested to know more about this technological breakthrough, we will be discussing the details in this preview today. So, join us as we explore the world of recordable Dual-Layer DVDs.

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