S20 DVD devices under Win7 vs Linux?

We plan to buy to buy a ThinkStation S20 and use it to dual boot Linux and Windows 7.  The S20 is offered with two different sets of optical devices.
S20's ordered with DOS (presumably for use with Linux) are offered with
"Lenovo 16x DVD ROM (DOS)" and
"Lenovo 16x DVD +/- RW Dual Layer (DOS)"
S20's ordered with Windows 7 are offered with
"Lenovo 16x DVD ROM (Windows 7)" and
"Lenovo 16x DVD +/- RW Dual Layer (Windows 7)"
My questions:  How do the DOS and Win7 versions of the DVD devices differ? More important, which version is needed in order to run properly with both OS's?  Is there some kind of Win 7 specific firmware in the Win 7 versions?
I phoned sales; he did not know and transferred me to tech support.  Tech support confirmed that they are different part numbers; that the DOS version is labeled (in their internal listing) as being for "DOS/Linux"; and (most important) their listing says that neither one is a substitute for the other.  Beyond that, they could give me no info to help determine whether to get the DOS or Win7 version of the DVD (whether regular or Dual Layer).
Thanks .... Mark
T60p, T61p, and X201 - each of them dual-booting Ubuntu Linux and Windows
Solved!
Go to Solution.

welcome to the forum!
the DOS/linux units are certified for DOS and linux use.   drivers for these units are available one way or another.
i had a "DOS" DVD/RW in my D10 and it worked fine under server 2008 and 2008 R2.   i suspect you won't have any issues with one of these drives should you run windows 7.
ThinkStation C20
ThinkPad X1C · X220 · X60T · s30 · 600

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