Which Recovery Media DVDs are unique for each delivered pc?

[alexx]

This is related to the other thread: what is "boot media" and "data media"

Having just finished making recovery media for the E520 I've just purchased for my daughter, I'm soon going to need to repeat the process for the other identical E520 I've just purchased for my other daughter.

I'm lead to believe that the Windows 7 media is unique for each pc, but during the creation of the recovery media, the process created 4 x DVD.

1. Bootable CD/DVD.
* Volume label: CD_ROM
* 305 MB

2. Recovery DVD 0.
* Volume label: RCD_AppCD0
* 3.62 GB

3. Recovery DVD 1.
* Volume label: RCD_AppCD1
* 4.04 GB

4. Recovery DVD 2.
* Volume label: RCD_AppCD2
* 1.22 GB

Do I need to make another complete set of 4 x CD/DVD or is only one of these unique for that pc hardware?

This is for a Thinkpad E520 (1143CTO) with Windows 7 Home Premium 64-bit.

[andyP Community SuperMod · Accepted solution]

If the systems really are identical you don't really need to make another set, the set you made will work.  That said, it can't be a bad thing to have two sets in case one set get's damaged, lost or whatever.

In such situations I prefer wearing belt and braces.

[alexx]

Thanks for the feedback.

In my case the two systems really are identical, but just to complicate things, one has been sent back for repair or replacement, so I need to be careful in case it is possible that a different one comes back that is just slightly different in specification.

While it sounds good to have two sets of media in case one set get's damaged, I can save the existing ISO images to some space on a 1TB drive rather than making a bunch of extra CD/DVDs.