MP is utilizes CPU when starting (some) recorded *.mpg (1 Viewer)

[easywatcher]

When starting previously recorded .mpg files, CPU utilization is going to 100%. 99% of it is MediaPortal. This will then stay for hours, if not stopped manually. I already tried different things. I used ffdshow, installed PowerDVD 7 and so on. Always the same. Some work, some don't. Don't see a difference in the mpg's.
All of those .mpg's work fine with VLC player or PowerDVD 7. Interesting enough with Windows MediaPlayer they show the same utilization problem as with MPortal.
Currently I am using PowerDVD7 for mpg audio and video.

Didn't see any similar problem discussed anywhere. So I a hope this is because there is an easy solution available.

TV-Server Version: 1.0
MediaPortal Version: 1.0
MediaPortal Skin:
Windows Version: XP SP3
CPU Type: AMD Athlon 64, 2466 MHz (12 x 206)
HDD: Maxtor 6L300S0 (300 GB, 7200 RPM, SATA)
Memory: 1024 MB (PC3200 DDR SDRAM)
Motherboard: Asus A8N-SLI Premium (3 PCI, 1 PCI-E x1, 1 PCI-E x4, 2 PCI-
Video Card: RADEON X300/X550 Series (128 MB)
Video Card Driver: DirectX v9.0
Sound Card: nVIDIA MCP04 - Audio Codec Interface
Sound Card AC3:
Sound Card Driver:
1. TV Card: FireDTV DVB-S2
1. TV Card Type: DVB-S2
1. TV Card Driver: FireDTV BDA DVB-S2 Version: 5.0.1.0
2. TV Card:
2. TV Card Type:
2. TV Card Driver:
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:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider: Astra 19.2°E
HTPC Case:
Cooling:
Power Supply:
Remote: Digital Everywhere
TV: Samsung
TV - HTPC Connection:

 

[easywatcher]

I tested a view internal and external players. Non of the internal ones worked. All of the external did (Power DVD, VLC)

MP is using 99% CPU and is running on the database. It doesn't stop if I don't kill the process.

Can't believe I am the only one having this issue.

Thanks for any idea

Sepp