Hiya...
I'm the original poster from the other forum. I discovered CDRLabs and am happy I found another great resource!
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Anyway... I actually purchased this drive on Monday this week at my local BestBuy for $250 (USD). Not a bad deal at retail. It IS available in at least my local stores... just not advertised yet.
I believe it is identical to the Plextor 708A for a few reasons -besides the identical specs and performance- :
1) The drive case is the same. The front of the TDK drive and the front of the plextor drive are identical, right down to the glossy black stripe at the bottom of the cd-tray's cover. They are absolutely 100% physically identical, except of course for the markings (TDK instead of Plextor). If you compared the black bezel 708A to the TDK 840G, and removed the markings on the front of both, you would think they were the same drive.
The tray is also black, like Plextor's.
The back, right down to the vent holes and their placement is identical as well.
2) The firmware follows the same convention... i.e., this drive has a TLA # of 0002 (I think that is what it said... ) and a firmware # of 1.02, like Plextor.
Either TDK took the same chipset as Plextor and basically copied their design to the most minute detail... or Plextor OEMed for TDK.
Of course, in the end the performance of the drive and the price are what counts not the design of the front (though I do love the design), and I think the drive is as good if not better than my old Sony DRU500ax... the primary advantage being speed increases all around (8X +R -on 4x discs no less-, 4X+RW, 40X CD-R).
-P