It would be best to test this on some cheap media first, as I can't guarantee it'll work, but as for the video DVD specification, it requires only a properly organized VIDEO_TS (always uppercase, but some DVDs work even with lowercase names), proper disk title (no spaces, all uppercase), and for it to be in UDF format.
All of this can be done with the Finder and Disk Utility, I believe. I don't know if you can specify UDF format for disks with Disk Utility, but you can with Toast.
Here's a utility that might help in creating a proper disk:
Use the link I posted above. If your VIDEO_TS folder is ready-to-go, then using DVDImager is the next-to-last step to getting a video DVD.
DVDImager will apparently make an ISO image in UDF format out of your VIDEO_TS folder, then it's just a matter of using Disk Utility to burn the ISO to a disk (even though you can't manually specify UDF format, Disk Utility respects the format of the disk image and will burn in the same format as the image).