Thanks for the help everyone. From what I can tell, I may just have to wait for Sony to update CD Architect before it will allow this.
It’s just strange though because you can set up a CD image with whatever you want before track one - it just won’t burn the disc.
I guess I’ll have to use EAC in the meantime.
For those of you wondering about the reason, it’s pretty much what’s been said. My band is making CDs and we just thought it’d be interesting to put one or two demo tracks ‘hidden’ before track one. They’re not songs that are part of the album or songs we think everyone should hear - just a little bonus for those curious enough to look there.