Help! Audio levels differ on DVD, but are from same source!

I'm making a showreel, but when i burn a DVD from Encore the audio levels are
off even though it is referencing the same media. This is happens in every Menu
& Submenu on the disc.
Example:
User selects "Play all" and audio is soft, but select any of the
individual spots and the audio is hot. While the "Play All" is a
different timeline from the Individual timelines, they are referencing the exact
same .m2vs. Can someone shed some light on this?

2x2.66 Dual-Core MacIntel
OSX v10.4.10

Damian,

Thanks for the response. No, the audio from the "Play All" & the
Individual tracks reference the exact same ac3 file in the project, but play
louder/softer in different timelines.

In Encore CS3, when a timeline contains multiple clips in an audio track, the
entire audio track is decompressed into a single file, then re-transcoded to
AC3. This keeps the audio downstream in sync, and I suspect there is level
averaging in this algorithm as well.

There are a couple of ways to avoid what you are seeing (other than remixing
your audio in your NLE or audio editor):

1. Use a single timeline for the play all part containing all the clips with a
chapter at the beginning of each new clip (Encore does this automatically when
you drag a clip into a timeline), then use a chapter playlist for each clip
(chapter) in the timeline that you want to play individually. Link the other
menu buttons to each chapter playlist

2. Avoid a multi-clip timeline, and instead use individual timelines as you did
previously. Use a playlist (not chapter playlist) to play the timelines in the
order you want. There will be a pause between each timeline played back.