I have authored 18 separate AVIs that totaled 1 hour 30 minutes in length. I brought each movie onto the title slide background. Each of these buttons truns into an automated button showing a small video preview which is nice. I have the "project settings" "fit to disk" which changes the quality appropriately. However the MyDVD indicates that I have over 600 MBs to much data. I tried to override the Fit to Disk setting and to the lowest quality but still do not have enough room to burn this DVD.

At least 2 hours of high quality video is a standard store DVD, what gives?

First off those avi files are most probably a format that is compressed,like Divx or Xvid.What that means is even though they may look to you like they're an hour and a half once they get converted to DVD format they will be much larger.
A DVD will only record about an hour of video.What you're thinking of is a store bought DVD which is double layered so the studios can fit much more on them.
Try this.Don't use fit to disc.Just burn the video to an iso file on your hard drive and then double click the file and Disc Copier will open and burn the disc,compressing the file as needed to fit.

Yes you are right, I did not realize I was using a single layer disk. Switched out to a Dual Layer and I can write my show!

Thanks

That's probably the best way as now you won't have any more compression than that used to make the vids in the first place.
Enjoy

I have just ordered a pack of 8.5GB Dual Layer DVD's and would like to know if Roxio Easy Media Creator 8 will be able to notice the larger size and burn to them or will I have to upgrade to a later version? Thanks in advance for any advice.

EMC 8 supports DL.

Many thanks, that's good news.

And of course you have to have a drive that supports burning DL discs.