Convert a CD file to an image file

At first, I used the winiso tool to convert the disc into an image optical drive. However, because a file cannot be copied, the tool reports an error saying that the source file cannot be copied. I was wondering, I copied a file and a file, but I copied it, and it automatically disappeared. I checked on the Internet and said that the disc was locked and encrypted. Later, I went to the Internet to find the tool clonecd, which can copy the disc with the lock applied. So I tried it, but I generated a lot of files. One of them is very large. I guess it is the file I want. Other files may be auxiliary files, which are useless. After reading the file with the suffix IMG, I changed it to ISO and deleted all the other files.