Brief description of the problem
(please refer to Mike's
original announcement for more information and further questions on this subject.)
Microsoft has been investigating this problem (but unable to reproduce it in the US which makes the investigation a little harder). From what we've been seeing, it appears that opportunistic scanning, combined with inconsistent data in the transmission is causing the problem.
Opportunistic scanning is scanning on the currently tuned transport stream. When MCE tunes to a transport stream for some reason (the user channels up/down in live tv, or recording a scheduled program), the scanner monitors the stream for changes in service or network information. Such changes in information are usually a rare occurrence.
However from what we've seen in logs, some broadcasters are updating this information at certain times in the day. Unfortunately, they send different data each time. The changing of the service information, results in the removal of the old channels and addition of new ones.
Once installed, this hotfix allows you to turn off opportunistic scanning by setting a registry key.
Instructions on how to get the hotfix in Australia
If you have an existing support agreement or process, you can use this to get the hotfix.
Otherwise you can:
- ring 13 16 30
- For non-Partners (most likely you), select Option 1 from the first IVR menu, followed by “All Other Support Enquiries” at the next prompt. This will reach a Customer Service agent.
- If you are partner customer (Gold, Certified or Registered), you can select the IVR path via Option 2. Once you arrive at the appropriate Partner menu, select the “All Other Support Enquiries” option and a Customer Service agent will attend to the call.
- Ask the service agent for hotfix 938927. Tell the service agent that this hotfix is for the Media Center and its a little unusual as the KB article hasn’t been published yet (ie. they won’t be able to find KB938927). However they can still give you a hotfix without the KB.
If there's any problem, ask to speak with their manager, if still no luck send me a private message and I'll make sure its sorted out for you.
(Note: hotfixes are free - you wont be charged).
Installation instructions- Exit MCE
- Install the hotfix
- Add in the registry a DWORD key HKLM\SOFTWARE\Microsoft\Windows\ CurrentVersion\Media Center\Service\ GLID\DisableActualStreamOpportunisticScanning and set its value to 1. To achieve this you can either use regedit to enter the key value directly, or just open the attached zip file on the machine and run .reg file within it.
- Reboot
If you’ve been encountering this problem, I’d recommend that you go through MCE setup again (Tasks->Settings->General->Windows Media Center Setup->Run Setup Again), and then delete all your scheduled recordings and reschedule them.
source:
Mike Heyton
