I am trying to find a program to write to my DVDs that I produce that will make the DVD unusable after 90 or 365 days.

I am using Roxio MYDVD studio 9 to burn my DVD.

The only actual burning program I have found (InAlbum) that has an expiration date built in is NOT a program I want to use.

Is there an easier way to make my DVD unusable after 90 or 365 days? Anyone know of a program?

What you want to do has already been done and it failed.
The Lesson of DVD vs. Divx - O'Reilly ONJava Blog (http://www.oreillynet.com/onjava/blog/2002/04/the_lesson_of_dvd_vs_divx.html)

A regular DVD player knows nothing about the date and time and even if it does the person with the remote control can easily change it if they want to view the expired content.

I suggest you do some research on DRM (Digital Rights Management). You should find some methods for protecting your work.