It has always happened to all of us that when copying the contents of a CD or DVD directly to our hard disk, all the files we have copied are logically Read Only, so they cannot be modified or altered unless that attribute of the corresponding file.
If it is 2 or 3 files, removing that property is easy but if they were hundreds of files it is a very tedious, heavy and overwhelming job to do it manually.
For this specific case there is this program called ReadOnly which automatically removes the Read Only attribute to all the files in the folder that you indicate (and the subfolders it contains).
You can free download ReadOnly and safe install the latest trial or new full version for Windows 10 (x32, 64 bit, 86) from the official site.
Devices: Desktop PC, Laptop (ASUS, HP, DELL, Acer, Lenovo, MSI), Ultrabook
OS: Professional, Enterprise, Education, Home Edition, versions: 1507, 1511, 1607, 1703, 1709, 1803, 1809