Ok I read this forum: How to use DAPHNE to play laserdisc games without having a real laserdisc.
I got all the needed m2v and ogg files for Dragon's Lair.
What do I do now?
How do I play it using Daphne?..

You'll need a framefile, just as it says in the documentation at the address below.

Also, as a polite suggestion, posting the same thread in more than one forum is unlikely to improve your chances of getting a reply - people either know the answer, or don't, and they all tend to look at all the forums. http://www.daphne-emu.com

Also make sure you clarify that you "got" these m2v/ogg files from either a laserdisc or a dvd-rom that you own, because I don't allow technical support for warez'd versions to occur on this message board.