Just found this: Acording to Amazon you can sign up for the DVD and they will let the studio know how many customers are waiting for it and notify you when it is available.
If you have nothing against giving Amazon your email address I guess it would be worth a try.
here is the link:
http://www.amazon.com/exec/obidos/tg/detail/-/B00005JLEX/102-5617668-5416900?vi=glance
I'm signing up now. I want my - I want my - DVD.