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"File format is invalid" problems with VirtualDub
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videophyt
Newbie
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30. September 2002 @ 13:59 _ Link to this message    Send private message to this user   
when I capture a video file using VirtualDub (latest version 1.4.10), and then "Save as AVI" using either "Full Processing Mode" or "Direct Stream Copy" mode, the resulting AVI file generates a "File Format is Invalid" error in Windows Media Player when you seek with the slider. Once I get past this, I can acutally start editing in Vdub!!
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Staff Member
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2. October 2002 @ 16:55 _ Link to this message    Send private message to this user   
Did you use any video codecs or audio compression making this avi file?
videophyt
Newbie
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2. October 2002 @ 20:50 _ Link to this message    Send private message to this user   
Negative. Just straight capture from an S-VHS source with audio/video syncronization enabled. The captured file can be viewed/scanned no problem, but once you "save as AVI" with no filters no nothing, its hosed. I may try saving with a null filter just to see if it makes a difference . . .
Staff Member
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3. October 2002 @ 04:23 _ Link to this message    Send private message to this user   
God computers can be touchy can't they!!! Even if VirtualDub won't open your file, try using TMPGEnc or Panasonic Mpeg-1 Encoder, they never seem to have too much trouble with avi files!
videophyt
Newbie
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3. October 2002 @ 07:16 _ Link to this message    Send private message to this user   
TMPGenc will not properly encode the file after it has been "saved to AVI" by Vdub and then fails to play properly in the Windows Media Player (although Vdub can play it and seek in it just fine). The audio drops out. The "slider" test on the Windows Media Player is a pretty good barometer for not being able to encode with TMPGenc.

pfoley@biospect.com
Staff Member
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3. October 2002 @ 12:02 _ Link to this message    Send private message to this user   
If you captured the avi, what file size is it???
Jake
Senior Member

1 product review
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3. October 2002 @ 12:17 _ Link to this message    Send private message to this user   
Can you capture any other source than S-VHS? And you make .avi temporary file, why? Use some program what make .mpg file directly..
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VCDjunkie
Moderator
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3. October 2002 @ 20:16 _ Link to this message    Send private message to this user   
try converting audio in virtual dub before putting it through tmpgenc.

audio>full processing mode>> audio>conversion>44100 high quality 16bit stereo.. now either save wav to seperate the video and audio, or save avi and work with it as one piece.

you can also save the video seperate from the audio by clicking audio>no audio then click video>direct stream copy, then save avi.

may also want to change tmpgenc setting for the codec reader settings in under Option->Environmental settings->VFAPI plug-in and right click on the DirectShow Multimedia File Reader and increase the priority to 1 or 2 and try open the video.

best of luck
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