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ottoman: What you say it's not quite true. It doesn't require 2 different lasers. The laser will re-focus when jumping from Layer 0 to Layer 1.
Quote:
taken from www.doom9.net
Both Philips and MediaTek (one of the largest DVD chipset manufacturers and maker of the infamous DivX capable chipset that actually does QPel and GMC) are gearing up to deliver firmware upgrade to their existing DVD+RW chipsets that enables existing chipsets to burn dual layer discs. The upgrades are scheduled to be released in the next quarter and raise interesting upgrade possibilities because certain chipsets that can be upgraded are already used. However, even if the chipset is upgradeable, I wouldn't get my hopes up. Marketing people will certainly see dual layer as a way to sell you yet another burner even though it basically contains the same hardware.
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So technically speaking, this MIGHT be feasible, but marketeers won't let that happen.
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seaneyb2003: Probably we will see dual-layer DVD±R/RW during Q2. BenQ has announced their DW830A model, hitting the stores in April. Also Sony has announced DRU700A, with a vague release time on Q2.