How can solve this problem?

[fluffs]

I want to burn a music dvd with 150 music video's of .mpg and .avi files to a double sided 8.5mb dvd.
iDVD or Toast will only let me burn 98 files at a time and also does not let me adjust the level of music or normalise the volume so all tracks are at the same volume level.
Can anyone suggest a Mac OS X program or solution that allows me do this, without having to edit each file? Fluffs {;^)>

[xstep]

The more you put on a disk the more compression you would have to do and lousier the quality would be.

[fluffs]

There is no need for compression its 150 files but only 5.2 GB all up
and the double sided DVD is 8.5 GB so there enough room.

Its trying to find a burner to encode for home and car dvd player
or program like imovie (which will not except mpg)
or find some way of making it one file

[mrplow]

I've a feeling that 98 is the limit of chapters within the DVD standard. Happy to be corrected as I'm digging this up from a far and distant corner of my head. But That's the way I remember it.

I guess it's up to you which way to go but here's a few ideas:
1. combine some of the mpgs into larger files (ffmpegx lets you join videos together). Get the total number of files down <99 and try again.
2. Burn to 2 single layer DVDs
3. Try Visual Hub (it can take multiple files and create DVD images)

[xstep]

There is no need for compression its 150 files but only 5.2 GB all up

Well look at that. A needed detail that you didn't put in the original post. Not that I think it is relevant.

This thread will answer you limit question I think. I'm not sure why you are seeing limit of 98 files instead of 99.

The thing is, if you are trying to create a DVD playable on say a regular DVD player for the TV, then the applications you are using are converting those files to MPEG2. The size of your source files probably are not relevant. Because of the conversion, the size is changing and the applications may have a fixed time limit for content like 2 hours, or perhaps 4 for a dual layer disc. I don't know the limits of the top of my head. You'll need to look into that. There are a lot of variables in this process.

I'm not sure DVD authoring apps do audio leveling. Look at the specs for DVD Studio Pro or the Adobe equivalent. I think you would have to export the audio and use an audio dedicated application.