How to generate a blank 1GB iso

Operating Systems & Open Source Linux
1

Background:
I want to convert an Audible audiobook to a DRM-free MP3 file (so I can ditch windows, I still use it for some of my media), however the only way to accomplish this is to import the book into iTunes (on windows), then use iTunes to burn the audiobook to a CD, but I do not own a CD writer. So instead of using an actual CD, I want to write it to a mounted .iso file. However, I need a completely blank .iso file at least 1GB in size. I looked around and I found no ways to do this on windows so I thought that there surely was a way to do this in linux.

Any ideas for creating the iso?

2

Have a look at mkisofs or genisoimage, they are basically the same program.

3

Ah, This is exactly what I need, Thanks.