Burning disk for the first time with 'Caligula' and i'm struggling to understand what I'm doing wrong.

Caligula is for disk burning similar to Brasero but light weight.

Here's the steps I've taken.

command Input

$ caligula burn --root ask debian-12.11.0-amd64-DVD-1.iso 

output 1

Input file: debian-12.11.0-amd64-DVD-1.iso
Detected compression format: no compression
? Is this okay? (Y/n)  

I hit 'Y'

output 2

> Is this okay? Yes
? What is the file's hash?  
[We will guess the hash algorithm from your input. Press ESC or type "skip" to skip.]

I Input the file hash and it worked

output 3

Detected SHA-256
Disk image verified successfully!
? Select target disk  
> sr0 | DVD-RAM UJ862A - 2.0 KB (disk, removable: yes)
<Refresh devices>
<Show all disks, removable or not>
[Only displaying removable disks.]

selected sr0 (my dvd drive) and this is the step where the error occurs.

unexpected error occurred: panicked at /home/myname/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/caligula-0.4.8/src/ui/main.rs:51:9:
Explicit failure signaled: Some(UnknownChildProcError("Read-only file system (os error 30)"))

I'm unsure how to processed from here tried looking this error up and I found nothing since this project is new also tried signing up to GitHub so i could ask the questions but i see no discussion tab.