No audio with MPEG-2 files !

Greetings !
I just installed the tryout version of encore DVD 2.0.
I have the same problem i had on Premiere Pro 7.0 where it can process the audio tracks of MPEG-2 files.
In Encore, i also can't ear a thing when using the monitor window to playback the asset MPEG-2 file in its own timeline.
In other words, can Adobe Encore DVD 2.0 can process MPEG-2 assets or is it just good for AVI format ?
Thanks !

Weird !
I tried again today and for some reason, part of the Audio is back !
I still get gaps though.
I was wondering... I see this transcoding settings and not sure what it fully implies ! (Even after reading the manual)
I captured VHS tapes using Hauppauge WinTV PVR Hardware encoder (MPEG-2 chip)... With great results !!!!
I just figured that i wont be able to use Premiere to edit those rushs but my main goal was simply to put the rush on a well organized DVD... Therefore using Encore DVD 2.0.
What would the recomanded settings be in terms of audio transcoding ? Dolby, MPEG-1, PCM ??
Should i set (Doesn't transcode) ???
Thanks !

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General
Complete name : /Users/tester/Movies/export-tests/test24trailer.mpg
Format : MPEG-PS
File size : 12.9 MiB
Duration : 12s 576ms
Overall bit rate mode : Variable
Overall bit rate : 8 614 Kbps
Video
ID : 224 (0xE0)
Format : MPEG Video
Format version : Version 2
Format profile : Main@High
Format settings, BVOP : Yes
Format settings, Matrix : Default
Format settings, GOP : Variable
Duration : 12s 533ms
Bit rate mode : Variable
Bit rate : 7 995 Kbps
Maximum bit rate : 38.8 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Active Format Description : Letterbox 16:9 image
Frame rate : 59.940 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.145
Stream size : 11.9 MiB (92%)
Audio
ID : 189 (0xBD)-128 (0x80)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Format settings, Endianness : Big
Muxing mode : DVD-Video
Duration : 12s 576ms
Bit rate mode : Constant
Bit rate : 448 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Compression mode : Lossy
Stream size : 688 KiB (5%)

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