DD ljudtest, blir "laggande"/hoppande ljud

Hej,
sitter med sr:s surround tester:
http://www.sr.se/sida/default.aspx?programID=2445

Får alla utom 1 att fungera som det ska. Det är deras "dd" på 8mb som inte fungerar. I winamp sprakar det bara. quicktime kan inte spela den. mpc-hc med ac3filter, kan spela den men det är då det hackar till precis när man startar testet, sen "funkar" det men att ljudet hoppar. Testat massor inställningar i ac3filter, men inget hjälper.

Sitter med datorn i sign. Så ljudet är z5500 och xfi ljudkort.

Kollar jag i ac3filter medans testet spelar, så visar "decoder info" olika hela tin (tror detta har med problemet att göra). Men när den visar mest info så ser de ut som följande:
_________________________________________________
Input format: PCM16 2/0 (stereo) 44100
User format: PCM24 3/2.1 (5.1) 96000
Output format: PCM24 3/2.1 (5.1) 96000

Decoding chain:
(PCM16 2/0 (stereo) 44100) -> Detector -> (SPDIF 3/2.1 (5.1) 44100) -> Despdif -> (AC3 3/2.1 (5.1) 44100) -> Decoder -> (Linear PCM 3/2.1 (5.1) 44100) -> Processor -> (PCM24 3/2.1 (5.1) 96000) -> Dejitter -> (PCM24 3/2.1 (5.1) 96000)

Filters info (in order of processing):

Detector:
-

Despdif:
-

Decoder:
Stream format: AC3 3/2.1 (5.1) 44100Hz
Bitstream type: byte stream
Frame size: 2786
Samples: 1536
Bitrate: 639kbps
SPDIF stream type: 0x1
Frame interval: 2786
Actual bitrate: 639kbps
AC3
speakers: 3/2.1 (5.1)
sample rate: 44100Hz
bitrate: 640kbps
stream: 8 bit
frame size: 2786 bytes
nsamples: 1536
bsid: 8
clev: -3.0dB (0.7071)
slev: -3.0dB (0.7071)
dialnorm: -31dB
bandwidth: 20kHz/20kHz

Processor:
(Linear PCM 3/2.1 (5.1) 44100) -> Input levels -> (Linear PCM 3/2.1 (5.1) 44100) -> Input cache -> (Linear PCM 3/2.1 (5.1) 44100) -> SRC -> (Linear PCM 3/2.1 (5.1) 96000) -> Mixer -> (Linear PCM 3/2.1 (5.1) 96000) -> Bass redirection -> (Linear PCM 3/2.1 (5.1) 96000) -> Equalizer -> (Linear PCM 3/2.1 (5.1) 96000) -> Dither -> (Linear PCM 3/2.1 (5.1) 96000) -> AGC -> (Linear PCM 3/2.1 (5.1) 96000) -> Delay -> (Linear PCM 3/2.1 (5.1) 96000) -> Output cache -> (Linear PCM 3/2.1 (5.1) 96000) -> Output levels -> (Linear PCM 3/2.1 (5.1) 96000) -> Linear->PCM converter -> (PCM24 3/2.1 (5.1) 96000)

Dejitter:
-
______________________________________________________

Och sen detta:
______________________________________________________
Input format: PCM16 2/0 (stereo) 44100
User format: PCM24 3/2.1 (5.1) 96000
Output format: PCM24 3/2.1 (5.1) 96000

Decoding chain:
(PCM16 2/0 (stereo) 44100) -> Detector -> (SPDIF 3/2.1 (5.1) 44100) -> Despdif -> (Unknown) -> Decoder -> (Unknown) -> Processor -> (PCM24 3/2.1 (5.1) 96000) -> Dejitter -> (PCM24 3/2.1 (5.1) 96000)

Filters info (in order of processing):

Detector:
-

Despdif:
-

Decoder:
Out of sync
Processor:
(Linear PCM 3/2.1 (5.1) 44100) -> Input levels -> (Linear PCM 3/2.1 (5.1) 44100) -> Input cache -> (Linear PCM 3/2.1 (5.1) 44100) -> SRC -> (Linear PCM 3/2.1 (5.1) 96000) -> Mixer -> (Linear PCM 3/2.1 (5.1) 96000) -> Bass redirection -> (Linear PCM 3/2.1 (5.1) 96000) -> Equalizer -> (Linear PCM 3/2.1 (5.1) 96000) -> Dither -> (Linear PCM 3/2.1 (5.1) 96000) -> AGC -> (Linear PCM 3/2.1 (5.1) 96000) -> Delay -> (Linear PCM 3/2.1 (5.1) 96000) -> Output cache -> (Linear PCM 3/2.1 (5.1) 96000) -> Output levels -> (Linear PCM 3/2.1 (5.1) 96000) -> Linear->PCM converter -> (PCM24 3/2.1 (5.1) 96000)

Dejitter:
-
______________________________________________________

Kollar man på "Decoding chain" så säger den att "despdif" unknown... kan detta vara problemet? sen även "Decoder: Out of sync"...

Väldigt mycket att läsa, men jag hoppas någon orkar och kan detta.

Tack på förhand,
MVH///Flamur