To start with, wav
is just a container for lossless pcm audio. Traditionally the default quality level is the same as cd audio, 44100/16, but it can hold a larger range. So be sure you understand what the exact specifications of your files are, and what your players can handle.
The DVD format supports pcm audio, within a range, as well. But most set-top boxes are designed for playing DVD Video
disks, which wrap the media up in menu system, and traditionally don't recognize raw data discs.
nowadays some dvd players being sold that can also read many common video and audio format files directly from data discs and/or removable media. They're more like set-top multimedia players.
And as the last poster mentioned, there are also players designed for DVD Audio
, which is a similar, but separate, system for high-quality audio-only discs. DVD-Audio players have never really caught on commercially however, being seen mostly as a high-end audiophile product.*
If your player isn't one that can handle dvd-audio or read data discs directly, then you could use one of the available dvd authoring programs to wrap your files up in video dvd menu. Just stick your audio streams inside a dvd-compliant mpeg2-ps (vob) container first, and use a static image or something for the video stream. There's no reason your "video" actually has to have video.
(*I wonder if things would be different if makers had simply added dvd-audio support to your average set-top dvd player from the beginning. Perhapse dvd-audio discs would be in the process of supplanting cd audio instead of being a niche product. It would likely be more popular, at least.)