File size increases once in the timeline

[AUVPMJH]

I am trying to create an ISO file to burn from Premiere Elements.

No matter how I encode the file, it will end up 5.22 GB which is too large to be able to create an ISO file.

The file is rendered to be 3.98 GBs. I even reduced it to 3.0GB and it will always show up as 5.22GB when trying to create an ISO file. 

It's beyond aggrivating. Someone please advise. 

[Ann Bens]

Post sceenshot export settings.

How long is the timeline?

Double layer?

Or use something like Shrink DVD.

[Peru Bob]

I think that with DVDShrink you have to create a virtual DVD drive for the ISO to be detected.

[Ann Bens]

That is very well possible: it is just such a long time ago I used the program.