Video jerking a bit.

Microsoft Windows

Hi all,

I have an HP m390n that is running Media Center Edition 2004. I'm having a problem where when I
play back a TV recording the picture every so slightly jerks a little. Almost like there is a
latency problem or something. I've checked the Windows Task Manager Performance monitor and during
recording it's running about 50%, and during playback about 30%. Although, I used to have quite a
bit of spyware/adware, I've since been able to remove all of it. Does anyone have any idea what
might be the problem, or what I can check?

Thanks in advance,
Don
Did you ever check your MPEG2 decoder? have you always had this problem or
did your machine develop it recently?
Decoder can be checked by running this tool:
http://www.microsoft.com/downloads/details.aspx?FamilyId=DE1491AC-0AB6-4990-943D-627E6ADE9FCB&displaylang=en
Hi Alex,
The machine developed it a few months ago. Don't recall what I might have installed that might have
anything to do with it. I ran the utility you mentioned above. It shows I have the following
available:
- MainConcept MPEG Video Decoder ( mcdsmpeg.ax), version 1.0.0.38
- Ligos MPEG Video Decoder (lmpgvd.ax), version 4.0.0.90
- InterVideo Video Decoder (ivivideo.ax), version 4.0.11.397

Using the utility, I've tried them all and have problems with varying symptoms. Now, the
fast-forward, fast-rewind, and play controls behave erratically. Sometimes when I fast forward I
loose control, and the video just keeps going fast forward.

Any ideas? I seem to remember having a similar problem about a year ago, and discovered it was an
".mp3" codec that caused interference. But, that was with Windows Media Player ver 9. I'm running
ver 10 now.

Any ideas?
Thanks, Don
I have the following audio codecs installed:
-------------------
IMA ADPCM Audio CODEC
Microsoft ADPCM Audio CODEC
Microsoft CCITT G.711 Audio CODEC
DSP Group TrueSpeech[TM] Audio CODED
msg723.acm
Windows Media Audio
Sipro Lab Telecom Audio Codec
Fraunhofer llS MPEG Layer-3 Codec
Microsoft PCM Converter

video codecs installed:
-----------------------------
- Cinepak Codec by Radius Inc.
- Indeo codec by Intel
- iyuv_32.dll
- LEAD MCMP/MJPEG Codec [VFW]
- Microsoft RLE Codec
- Microsoft Video 1
mh261.drv
msh263.drv
msyuv.dll
tsbyuv.dll

Does this help?
Thanks, Don

Don
Could you open the device manager and check what's in the properties for the
IDE/ATA Controllers/Primary IDE Channel/Advanced Settings?

The current transfer mode is supposed to be Ultra DMA Mode 5. Make sure it
is not PIO
I have two entries for each of the following:
- Intel(R) 82801EB Ultra ATA Storage Controllers
- Primary IDE Channel
- Secondary IDE Channel

The "Advanced Settings" for "Primary IDE Channel" are"
- Device 0:
- Device Type: Auto Detection
- Transfer Mode: DMA if available
- Current Transfer Mode: PIO Mode

- Device 1:
- Device Type: Auto Detection
- Transfer Mode: DMA if available
- Current Transfer Mode: Ultra DMA Mode 5
So, this would be most likely the reason for your problem:
- Transfer Mode: DMA if available
- Current Transfer Mode: PIO Mode

I assume this is the channel that hosts the system hard drive. To remedy
this usually you go to device manager and uninstall the Primary IDE
Controller Channel. Then reboot to let Windows rediscover it.
Hi Alex,

That took care of the jerking video. It's as smooth as it ever was. Thank you.
However, now I seem to be having a lockup problem when I play a recorded video. This happens when I
try to use fast-forward or fast-backward. The picture freezes and I have to shut down MCE 2004 to
regain control. I've tried all three codecs I listed in my original response to your first response
to this subject. They each seem to behave differently. Any ideas on this one? I remember having
this problem about a year ago, and think it had something to do with an audio codec I was using.

Don
More likely it is caused by a video driver. Could you make sure you have the
latest one?
Downloaded the latest NVIDIA GeForce FX5600 driver. Also, uninstalled the monitor driver and let
reboot re-install it. Still get freezing video when clicking on fast-forward and play.

What do you recommend for an MPEG-2 Decoder? I don't know where I got the three I listed above, or
which came with the m390n when I bought it one year ago.

Don
Nvidia ForceWare works very well. It can be purchased online from Nvidia
site for $19.95
Thanks Alex.
Don
Oh, I meant to include the settings for the other "Primary IDE Channel". Here they are:

The "Advanced Settings" for the second "Primary IDE Channel" are"
- Device 0:
- Device Type: Auto Detection
- Transfer Mode: DMA if available
- Current Transfer Mode: Not Applicable

- Device 1:
- Device Type: Auto Detection
- Transfer Mode: DMA if available
- Current Transfer Mode: Not Applicable
By the way, I have two drives. Both are Maxtor. One is 200 GB, the other is 250 GB.