Hi, Michael:

It would be nice to have the exact error, as well as the usual details about your computer (model of your system and DVD drive).

I have a dell dimension e310 with dvd drive HL-DT-ST DVD+-RW GSA-H21-N. Windows XP Media center 2005. The error I get says Decoder Error,no number. I have dell cinemaster and it will not play. I can play cd's,and even burn them. Also, it says I have sigmatelhigh definition audio codec. I have intel 82915g/gv/910gl express chipset. I hope this is enought info to help. Thank you,Michael 

I found na error message on event viewer. It says SSDP discovery service, Media center extender service, The service cannot be started either because it is disabled or because no enabled devices associated with it. I am sorry if the error message is not exact,but that is the basic message. If need be exact I could copy it. It is a samsung cd/dvd player. Thank you again.

The SSDP service is not the problem.

 

I would uninstall then reinstall Cinemaster. Also check downloads for any program updates.

I looked for a copy of cinemaster but, they want 14.99 for another copy. Mine was preinstalled by dell,so I have no cd to reinstall. As far as downloads, they are up to date. I installed vlc and it now works for playing dvd's. I hate to waste media center but,I would'nt know where to get another install.that would not cost me. Its been a long time since media center messed up,so I dont know what exactly what did it. Is it possible installing media player 11 would have done it? If I remember I think thats when I installed mp11. Not sure and I know it doesnt help. But thank you for your replys back.

You can request replacement discs from Dell if you want to reinstall Media Center.

 

WMP 11 may well have messed up your decoder (which is why we suggest, "If it ain't broke...").