Well for that much, then really it's just about finding what features you want.
There are 2 steps in doing what you want. The first is converting the mp4 to a vob file (a specialized mpeg-2 video). The second is authoring the DVD, which sets up the disc with the special language that the DVD player understands.
Roxio Toast is a long time Mac standard for all sorts of DVD burning. It has built in conversion abilities, so you can drop mp4's into it and it'll author playable DVD's (you can customize menus as well).
if you have Apple's iLife with iDVD, it should be able to also convert mp4's (but not other fomats like avi, divx) and author the DVDS..it's menus are also customizable, and animated while Toast's are static). i've never been thrilled with how well iDVD does though.
I prefer to use VisualHub to convert files to DVD vob files and then use one of the above to author in various complicated ways, but visualHub went out of production years ago and works less and less as the years go by.
There are lots of conversion Apps in the Mac App Store...with various levels of customizability.
I've tried Permute and various products from leawo (I think that's right) with decent results, but none give the level of control that VisualHub did, but like I said, that's a bygone product.
Most of the conversion programs CAN output a DVD disc image that you can then burn and play, but unless it's a specific authoring program, they're going to be very bare bones.
http://www.roxio.com/enu/store/mac.html?rTrack=m_pro_mac
http://www.fuelcollective.com/permute
http://www.leawo.com/