Windows 7 Ultimate Reinstall DVD by DELL - Are these legitimate?

I have purchased a Windows 7 Ultimate Reinstall DVD by DELL from eBay, because I have a DELL laptop, and didn't receive any disc with it, I only have a sticker on the bottom of the machine.

When it arrived, I noticed it doesn't have any hologram on the disc, unlike the regular Windows 7 installers, moreover it was sealed with a large white rectangular stamp when it arrived, that has some codes written on it, and the notification: "Made in China". On the Disc, you can see the "Made in China" notification printed on the edge of the innner hole of the disc, too, if you hold it properly under light.

I wonder if these discs are legitimate discs, produced by DELL, or these are just DVDs printed by some hackers in China to steal personal information from your machine? I saw some listing on eBay selling these discs with "Made in Germany" notification on them. Maybe only those are legitimate?

I worry about using these with my machine.

Here is a picture of the DVD I received, I didn't take this photo, but mine looks exactly the same:

If you have any question use the latest official Win7 ISO in Step 1 of Clean Reinstall - Factory OEM Windows 7 which will help you achieve a perfect reinstall.

The only thing added to a Dell Reinstallation DVD is auto-activation which you can achieve yourself using the Product Key on the Dell COA sticker on back of tower or on bottom or under battery on laptop, and a Dell logo on the System page.

It cost 14 Euro.

My Dell disks look exactly like that and they came with the PC, straight from Dell...