From your project choose Share Create Video File - DVD not Create Disc.
This option will render the project to a Mpeg2 DVD Compliant file using the highest settings. About 4 Gb per hour., Your 2.5 hours project will be a Mpeg2 file at approx 9 Gb+
The file could be used in other programs to burn a disc.
If you need Video Studio to create the disc menu structure then Share Create Disc
As you are aware the options cogwheel will allow you to set the conversion properties. If you also deselect Do Not Convert then all clips will be rendered to the settings you choose. The max size Video Studio will allow will fit to disc as that is what the module does.
I have noticed that it tends to be cautious and does not oversize rather create slightly smaller sizes, that stops the problem of creating those coasters.
If you try to oversize it will prompt you to Fit to Disc automatically adjusting the data rate.
The green bar shows two sizes one in brackets, which are you viewing?
And are you reading the figures to the left of the bar.?
I noticed you posted the same problem hereviewtopic.php?f=1&t=36600&p=189214#p189169