We are building projects with multiple DVDs in one install. The problem is your program is just using CD sized cabs to make up the DVD, which means that each DVD is only 3.8GB rather than 4.3GB. This is causing our projects to spill over into an extra DVD, while that that may not sound too bad, it caused problems with packaging, cases, etc.
It would be nice if this problem could be resolved, even a workaround where the cabs are a quarter CD in size would allow more to fit on one DVD.
cheers
Nic Wilson