Ok, let me ask some questions about the 6s and 7s, please answer them for me:
Is the 6s and 7s use the same chipset?
Is the hardware of both drives are the same or totally redesigned?
Which one has shorter casing?
What's the writing strategy when RE-writting 24x and 32x of both drive?
Why would LiteOn stop making 6s?
What's the reason LiteOn release 7s after the 6s was made?
How is the error rate when bruning CD-r at 52x of both drive? Just rate it.
What function that the 7s is worse than 6s?