Ok,
I ran into this problem before and am running into it again (since I never solved it the first time).
I merged 3 dvd's together each with motion menus of their own. I did this twice and merged the two sets of 3 together so I have 6 together. Then I merged that disk with 3 others and now have 9 merged together.
So here is the problem:
I had made motion menus with audio in TMPGEnc DVD Authoring. The menus, I have been replacing in the DRMP on my merged DVDs with the TMPGEnc menu, but all that happens is that I get a short 3 second busrt of beginning motion or music then it cycles and recycles.

How can I get more time out of the menu and audio?...I would like to get about 30 seconds or more.

PS: all I am doing in DRMP is replacing the block with the menu of the TMPGEnc and nothing else.... Not sure on what else I should be doing.
Thanks again

What version of DVDRMP are you using? What's the DVD size after merging 9 discs together? Are you planning on compressing to DL or SL?

Are you replacing the default DvdReMake merge menu with the TMPGEnc menu? If so, did you follow this guide: http://www.dimadsoft.com/dvdremakepr..._menu_full.php ? Play length of the motion menu should be retained. Check that the still time is 0 in the Programs pane.

Here are some more guides that may be useful to you:
http://www.cdr-zone.com/forum/post-31315.html#31315

If you see this in DRMP Debug only, than it is OK. There is a bug somewhere.
If it is on exported DVD, than see what toaddub has to say.