Hi Lori,
I’m not sat in front of my Avid at the minute, but i do have some notes I made about Avid DVD and here’s a section that might help you out:
– To link a Menu Button or Thumbnail to a .mov, click on the Button (in the PREVIEW Window) and the BUTTON ATTRIBUTES Window > ‘General’ tab (bottom right) becomes highlighted. In the ‘Link To:’ drop-down menu select the .mov you want to link. Scroll down to the bottom of this Window and make sure the ‘End Action: Return to Menu’ option is checked. Repeat this for each Button/Thumbnail.
Hope it helps.
Ra-ey