Unable to import any WMV file into After Effects CS4

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I am having a problem with importing WMV files into After Effects CS4. I get an error message reporting file not found with error code (-43) (3::40) for any WMV file I try to import. This happens with every single file I try to import; even with files created using After Effects. I am able to import these files with windows movie maker but After Effects fails to import them. I am using normal output settings 1280×750. I also tested using an AVI file in After Effects and rendering it as WMV. But once it is rendered as WMV, After Effects fails to import this file too although it was converted in this same application. I tried installing all major updates but nothing seems to help me. Did anyone else face a similar issue? Were you able to resolve it? Please share any ideas you think could help me to solve this problem. Thanks in advance.

After Effects error. Finding file/dir into for file “MontageFullwmv.wmv” – file not found (-43), (3:: 40)

Answered By 581880 points N/A #178133

Unable to import any WMV file into After Effects CS4


Adobe After Effects CS4 does support media files bearing the extension name “.wmv” or simply WMV media format and it is supported as import and export meaning you can either import or export the file without having problems and it is only supported under Microsoft Windows operating system. But since this media format throws back an error, try converting the file to another supported format.

Here are some of the formats where you can convert the file into so you can try importing it again to Adobe After Effects CS4:

  • AVI
  • QuickTime [MOV] – requires QuickTime to be installed on your computer.
  • MPEG-4 [MP4, M4V]
  • MPEG-2 [MPG, M2P, M2V, M2P, M2A, M2T]
  • H.264 [M4V]
  • Adobe Flash Video [FLV, F4V]
  • 3GPP [3GP, 3G2, AMC] – requires QuickTime as well.

Before converting the file, make sure the complete path of the file including the filename is specified and you didn’t just typed the filename. To make sure the file is selected in the program, click File, Open, browse to the location of the file, select the file and click Open to load it. This way you are sure the file is selected manually and it is obvious that the file is there and not missing.

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