Here is one example:
Original file (MKV) only one Audio file:
[code]Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 2h 24mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.52 GiB (19%)
Default : Yes
Forced : No[/code]
Here is the same file after remixing using subler with tree audio files[code]Audio #1
ID : 2
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : ac-3
Duration : 2h 24mn
Bit rate mode : Constant
Bit rate : 576 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 : 594 MiB (7%)
Language : English
Encoded date : UTC 2012-10-28 16:26:29
Tagged date : UTC 2012-10-28 16:33:32
Audio #2
ID : 3
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A9
Duration : 2h 24mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 24 bits
Compression mode : Lossy
Stream size : 1.52 GiB (18%)
Language : English
Encoded date : UTC 2012-10-28 16:26:29
Tagged date : UTC 2012-10-28 16:38:41
Audio #3
ID : 4
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 2h 24mn
Bit rate mode : Variable
Bit rate : 197 Kbps
Maximum bit rate : 313 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Compression mode : Lossy
Stream size : 204 MiB (2%)
Language : English
Encoded date : UTC 2012-10-28 16:26:29
Tagged date : UTC 2012-10-28 16:43:07[/code]
Only Audio 1 or 3 is selectable (press and hold the center button to open the popup menu).
Edit:
Original MKV file
DTS Codec ID is A_DTS
M4V file using passthrough with subler
DTS Codec ID is A9
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