Same ISO, different burns

[Momo50]

Hi folks!

 

Once more I ask for your collective wisdom....

 

I have burnt a Windows 10 ISO file into a blank DVD, under a Windows 10 PC and an internal DVD burner (in fact it is a Blu-Ray burner, but I guess it does not make any difference, or does it?) with the Windows' built in tool for ISO DVD burn. Burning took quite a lot of time, like 25 min.

 

I have burnt the same Windows 10 ISO file under a Mac with an external DVD burner, also with the MacOS built in tool, and this time process has taken 20 minutes.

 

Does anybody know why an internal optical drive, which is technically faster and supposedly more reliable, burns the same exact ISO file slower than an external optical drive?? Also, and this I found VERY WEIRD, the visible "drawing" in the DVDs surface (you know, the written sectors) look completely different in the Windows burnt DVD and the Mac's one: the Mac's one looks normal, while the PC's one looks... like a few rings superposed.

 

I would really appreciate any comment. Can the internal optical drive of the PC be faulty or have been tampered to behave strangely? It is brand new. A million thanks in advance!

[tkitch]

different drives on different OSs behave differently.  That's not unusual.

 

But legitimate question:  Why not just use a USB stick?  It's waaaay faster!   Both in creation, and in installation.  

 

A 4 or 8GB stick is all you need.

[Momo50]

Thanks tkitch!

 

Legitimate answer : because right now I don't have internet connection (problems of my ISP) therefore I can't create a Windows 10 USB installer with Media Creation Tool. I downloaded the Win 10 ISO file with a Mac laptop in a friend's house.

 

I get your answer, although I still find surprising that an internal optical drive writes way slower than an external one... And the mentioned visual written area thing in the discs' surface: the two discs look radically different

[Momo50]

Hi Grumpy!

 

Thanks for the advice. Unfortunately Rufus now requires the user to turn off Secure Boot in order to load the installer (have already tried), and honestly I prefer the Media Creation Tool method, which is the only "clean" method in the present to install Win 10 that I found in multiple forums....

 

Just a hypothetical question: if an optical drive contains malware in it's firmware, when someone installs Windows with this infected unit, would it be expectable to have a corrupted installed copy of Windows in the hard drive? In other words: to have an infected Windows installed?

 

Thank you guys!

[Momo50]

2 hours ago, Grumpy Old Man said:

Try some other than Rufus.........................https://www.pendrivelinux.com/category/bootable-usb-creator/

Thanks so much again Grumpy, I'll give it a look! Cheers! ^^