VLM

I used IsoBuster to extract wav files from a very full audio CD. Then I tried to use ImgBurn to burn a new CD. But I get a message saying "There doesn't appear to be enough space on this disc to burn this image. <space info> Would you like to continue anyway?" I'm very new at burning disks and this is my first time using ImgBurn for this purpose. Can someone help me find a path forward, so that I can put all the data onto the target disc? Thanks!