How to solve "dd: could not open '/dev/sdb1': Permission denied"?

Question

ubuntu

I downloaded a movie to the download directory and I want to copy it to a flash drive using dd.
Flash drive in fat32 format
I write the following command

dd if=/home/serii/Downloads/MiR.PreNadLeGiT.Tebe.2O18.D.TS.14OOMB_KOSHARA.avi | pv | dd of=/dev/sdb1

but i get an error

dd: не удалось открыть '/dev/sdb1': Отказано в доступе

I know that it is possible through media, but the goal is to master dd.
I will explain why I decided to copy it this way.
I need to write a Windows image to a USB flash drive using dd.
My motherboard is old and only supports mbr.
All utilities like unebootin or multiboot work with gpt.
I already tried to write through a nickname, and the bootloader is not visible at system startup.
Previously, in Windows, I used rufus, where you can select mbr.
The forum suggested that you need to use dd in Ubuntu - and everything will work.
So I'm trying to master dd and ran into a problem.
I did not find a working solution on the net.
Thanks in advance.

Answer 1

sudo!!