It appears to happen with each DVD I play. By selecting the 'no' option when asked if I want to debug or not,the error message disappears, I can then carry on playing the CD, but the message then re-appears again and again !! Since my posting I've been to the Microsoft Help site and they suggest confirming that I have a 'compliant decoder'. I have carried out the instructions and I do have a compliant decoder, WinDVD4. I've tried to run this without suceess though ! This is my first encounter with DVDs being an 'oldie'.
The technical stuff referred to runs into pages and pages I'm afraid.
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