Creating a DVD audio track from MP3 file...

[lnong]

Im capturing analog video from VHS and creating a DVD from it. The sound on the VHS is not good, so I want to use my own MP3 files for the DVD's audio.

I am planning to use Adobe Premiere to create my DVD. My question is should I convert my MP3 to MP2 or WAV (since these are the 2 DVD-compliant audio format)? Which format is better quality-wise? Or does Premiere allow me to directly use the MP3 format as an audio track for the DVD?

[reboot]

Neither. Convert it to AC3 in ffmpeggui to be compliant for DVD, or at least mp2. MP2 and wav are not dvd spec, although many players recognize the format.
Does Premiere do AC3? If so, that's your best option.

[daamon]

MP2 and wav are not dvd spec, although many players recognize the format.

Not quite true... MP2 is not part of the NTSC DVD spec, but it is in the PAL DVD spec. As for WAV, that's in both (it's PCM uncompressed audio).

Does Premiere do AC3?

Yes, I believe it supports audio in AC3 format (i.e. adding audio that's in AC3). As far as I know, it doesn't encode to AC3. But I use Premiere 6.0 and I'm not sure what's in later versions.