Zach,

One of the many things I don't understand about operating systems and codecs
is why, if Quartz.dll is Microsoft's good decoder for Motion JPEG files and
comes with my Vista system, why doesn't Vista manage the codec priorities
such that Quartz is used by WMP and Movie Maker even if ffdshow and PICVideo
codecs are installed and given permission to be used as needed.

It's hard to believe a codec from a third party can step in front of the one
preferred by Vista, and the operating system will accept it without getting
me the user involved. Among Quartz, ffdshow and PICVideo, the most polite
one is ffdshow when it asks if it should be used once, all the time, or not.
The other two don't ask.

On a slightly different subject, when a Motion JPEG file is open in WMP, the
file properties show the video codec when either ffdshow or PICVideo is
being used, but it offers no info about the codec being used when it's
Quartz... why is that?
--
website references are to www.papajohn.org

PapaJohn


"zachd [MSFT]" <zachd@nomailplz.online.microsoft.com> wrote in message
news:umLmnORZIHA.1184@TK2MSFTNGP04.phx.gbl...
>
> That's E_FAIL which is sad.
>
> On my clean / pristine system, MJPG plays back fine. You don't need
> pvmjpg30.dll to play this. FFDShow does have an MJPEG decoder, but that's
> replacing the built-in DirectShow MJPEG decoder that's part of Quartz. If
> you open up graphedt.exe (not on your system), you can go to Graph :
> Insert Filters : Video Compressors and you should see MJPEG decompressor
> under there.
>
> --
> Speaking for myself only.
> See http://zachd.com/pss/pss.html for some helpful WMP info.
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
> --
> "John Hanley" <jphanley@ix.netcom.com> wrote in message
> news:OjtqvwHZIHA.1532@TK2MSFTNGP04.phx.gbl...
>> Zach -- The URL that Web Help takes me to is:
>> http://www.microsoft.com/windows/win...nalid=80004005
>>
>> PapaJohn -- the pvmjpeg30.dll file is not in my System32 folder or
>> elsewhere
>> on my hard drive. I googled a bit for it and there are references to
>> 'pvmjpg30.dll' (without the e), but that is not on my hard drive either.
>> The main reference is to a site for
>> Pegasus Imaging and they call it PICVIDEO and they want $39 to download
>> it.
>> Are you thinking it is something that should have come with WMP
>> Microsoft?
>>
>> "PapaJohn" <papajohn@chartermi.net> wrote in message
>> news:OcS%23ZyGZIHA.4284@TK2MSFTNGP03.phx.gbl...
>>>I agree that a fix is better than a work-around... if I take my ffdshow
>>>codec out of the picture, MJPEG files still play.
>>>
>>> WMP plays them with pvmjpeg30.dll file in the system32 folder... check
>>> that it's there and try re-registering it in case it slipped a gear.
>>> --
>>> website references are to www.papajohn.org
>>>
>>> PapaJohn
>>>
>>>
>>> "zachd [MSFT]" <zachd@nomailplz.online.microsoft.com> wrote in message
>>> news:uTawOgGZIHA.1212@TK2MSFTNGP05.phx.gbl...
>>>>
>>>> What's the URL that Web Help takes you to?
>>>>
>>>> There's already an MJPEG codec on the system. It should work.
>>>> PapaJohn's suggestion might help you replace it if needed though, but
>>>> that shouldn't be needed.
>>>> AVI vs avi doesn't matter - the system is case-insensitive here.
>>>>
>>>> --
>>>> Speaking for myself only.
>>>> See http://zachd.com/pss/pss.html for some helpful WMP info.
>>>> This posting is provided "AS IS" with no warranties, and confers no
>>>> rights.
>>>> --
>>>> "John Hanley" <jphanley@ix.netcom.com> wrote in message
>>>> news:esWycIFZIHA.4896@TK2MSFTNGP06.phx.gbl...
>>>>>I have a Canon S3IS digital camera which can take movies. The movies
>>>>>show
>>>>> an .AVI extension and (I think) use an MJPEG codec. After
>>>>> transferring
>>>>> the
>>>>> movie files to my (Vista) hard drive, their behavior is erratic:
>>>>>
>>>>> - The movie files *will not* play in Windows Media Player. The WMP
>>>>> error
>>>>> message is: "Windows Media Player encountered a problem while
>>>>> playing
>>>>> the
>>>>> file". Clicking on Web Help reveals: "You've encountered error
>>>>> message
>>>>> C00D11B1 while using Windows Media Player."
>>>>>
>>>>> - The movie files *will not* play in Windows Media Center; WMC says
>>>>> "Cannot
>>>>> Play Video - Windows Media Center cannot open the file".
>>>>>
>>>>> - If I import the files into Windows Movie Maker, WMM appears to play
>>>>> them,
>>>>> but the preview screen is black.
>>>>>
>>>>> - GSpot reports that the file is a Motion JPEG, and that "Codec(s) are
>>>>> Installed".
>>>>>
>>>>> - The movie files *will* play using Canon's ZoomBrowser EX program
>>>>> (came
>>>>> with the camera).
>>>>>
>>>>> Related Info:
>>>>>
>>>>> - Both WMP & WMC play my .wmv files just fine. I also have one .avi
>>>>> file from a different source which plays fine.
>>>>> - The file extension on the AVI files that will not play is .AVI
>>>>> (capitalized); the file extension on the avi file that will play is
>>>>> .avi
>>>>> (lower case) -- probably does not matter?
>>>>>
>>>>> Will appreciate clues on where to look to solve the issue. Thanks.
>>>>>
>>>>>
>>>>
>>>>
>>>
>>>
>>
>
>