Do you mean creating a miniDVD or cretate a DVD using a 8cm disc?
MiniDVD corresponds to a DVD (structure) created using a CD as physical support, and besides being around for a long time there are not many home drives that can read it (I've a Denver that does - do not recall the model - chinese make), but it will be ok if you use a PC drive and (for instance) Power DVD.
Maybe Nero6 can do it, my experience was based on editing software by Ulead.
Anyway, you have to edit the files and turn them to MPEG2 DVD compatible files, then create the DVD structure and burn to CD.
As you have a DVD writer you can create proper DVD, so maybe what you want is to use 8 cm discs, and for that you've got sroppy's answer.