I copied some videos we made from my friends computer, I'm pretty sure he was using windows vista, I have media player 11, I receive an error message C00D11B1, when trying to play them, web help page came up and I went to it and couldn't find anything to help me. What codec do I have install to get them to play?

Streaming Errors in Windows Media Player

The following information might help you troubleshoot the issue.

Cannot play the file
Windows Media Player cannot play the file. You might encounter this error
Message for one of the following reasons:

Your sound device, such as a sound card or sound controller, requires an
Updated driver. To determine if an updated driver is available, see Windows
Update at the Microsoft Web site, or see the sound device manufacturer's Web
Site.

Your sound device is not functioning properly. Try using Device Manager to
Check the status of your sound device.

To check the status of your sound device
Do one of the following:

If you are running Windows XP, click Start, right-click My Computer, and
Then click Manage.

If you are running Windows Vista, click Start, right-click Computer, and
Then click Manage.

In the pane on the left, click Device Manager.

In the pane on the right, expand Sound, video and game controllers, and then
Look for the name of your sound device.

Do one of the following:

If your sound device is listed but the icon includes a red "X," the device
Has been disabled. To enable the device, right-click the icon, and then click
Enable.

If your sound device is not listed, in the pane on the right, expand Other
Devices. If Multimedia Audio Controller appears in the list, right-click the
Icon, and then click Update Driver or Update Driver Software. Follow the
On-screen instructions to find and install the driver software.

If you are not able to find and install the correct driver software, see
Your computer manufacturer's or sound device manufacturer's Web site for
Further assistance.

You do not have a sound device installed on your computer. Install a sound
Device, and then try to play the file again. For details, see your computer
Manufacturer's or sound device manufacturer's Web site.

And other possible reasons about my sound device, I have followed all them
Instructions although I didn't think it would be to do with the sound as
Music plays fine.
I have tried updates, I have tried using older versions of media player,
Tried using realplayer but to no avail. But I can watch videos on utube
I hope there is someone out there who knows how to sort this

No problems with sound device etcetc and its only video on one machine
Running media centre 2005

video that is taken from the good comp to the one not working, via a nother
Drive plays OK , when you download videos , or capture video from a camera ,
These will not play and give the error message, but only on one machine

Try using a different media player , go to VLC media player - Overview and download VLC media player .
This plays everything I've tried to play with no messing about with codec's and other crap that windows media player throws at you.
Regards
C

Excellent. This media player works!

Thanks C . Have been trying other media players, real player, windows real media player etc etc and none of them work all of a sudden. But VLC Media player WORKS!!
Thanks again

entoure