Copying a PC GAME DISC

Hi guys, I have a game and the disc itself is simply just a cheap disc and is starting to crackle, what software should be best to copy this with ? It's a PC GAME and it's DVD ROM.

copy iso file of disk to pc then burn that iso file to a new disk.

it's easy , if you have tools.
-=-

if the game is genuine they usually place some lock on it, so you cant simply copy and paste the data...

You might be able to contact support and ask them for a digital copy ( i doubt they give you that )

or if its a cracked game then search on torrents and download it