A little update. I've started with ESB97SE and decided these should probably get their own disc because of the extra audio options available.

I've already spliced and sync'ed the theatrical DTS discs and have 6 separate WAV files which represent each channel. I've also sync'ed up the 2.0 stereo as a raw wav. These have been resampled to 16bit 48khz via audacity as I believe 48khz is the only way to get audio onto a BD-25. I'll also be syncing the 5.1 LD ac3 audio sometime in the next few days.

Now, I figure the 5.1 LD(ac3) should remain an ac3 file but I would like to know what is the best way to put the 2.0 and theatrical dts onto BD. Should I encode to dts-hd, or is it possible to put the raw wav's on the disc without re-encoding? If so, wouldn't the 6 separate dts wav files need to be somehow mixed into one file? What would I use for that? BTW, I figure the .264 file will be encoded to a size of about 15-17gb which should leave plenty of space for raw audio files and a menu.