MPA codec and no sound on some german TV channels

[eku60]

MediaPortal Version: 0.2..4 latest patches
MediaPortal Skin: blue two
Windows Version: XP MCE 2005
CPU Type: P4 3.0 Ghz
HDD: Maxtor 160 Gb
Memory: 1Gb Dual Channel
Motherboard: Gigabyte GA8I-915G-MF
Motherboard Chipset: Intel
Motherboard Bios: latest
Video Card: Sapphire ATI X300, 256 Mb
Video Card Driver: 6.05
Sound Card: Realtek high Definition on board,
Sound Card AC3: SPDIF - in/out
Sound Card Driver: latest
1. TV Card: Terratec Cinergy 1200-dvbs
1. TV Card Type: DVB-S
1. TV Card Driver: 1.0.8.15
2. TV Card: TwinHan Vision DTV Sat 1020
2. TV Card Type: DVB-S
2. TV Card Driver: 1.2.3.8
3. TV Card:
3. TV Card Type:
3. TV Card Driver:
4. TV Card:
4. TV Card Type:
4. TV Card Driver:
MPEG2 Video Codec: MPV or Cyberlink
MPEG2 Audio Codec: MPA or Cyberlink
Satelite/CableTV Provider: Astra
HTPC Case: Antec Aria
Cooling:
Power Supply: 400W Fanless and external
Remote: TwinHan
TV: Philipd FlaTV
TV - HTPC Connection: DVI and S-Video


Hello to the group,

I'm having no sound on some german channels when switching to MPA-codec.
HR3 has no AC3 and no sound, ZDF for example has AC3 and sound. DScaler audio also doesn't work. Only the Cyberlink codec (from PowerDVD 6) works correctly.

I think it is not a problem of MP but the codec installation. I didn't install ffdshow or AC3Filter because of no idea how to setup them up correctly (many threads with different instructions).

Has anyone got the same problems or a solution for me?

Everybody a happy new year and many hours enjoying MP.

Regards
eku60