How to open WMA file in VirtualDub?

[newbie13]

I have a video with an off-centered image in it. I would like to use VirtualDub to center that image in the frame. I have downloaded VirtualDub. My video files are WMA. I cannot open them in VirtualDub. If I try to convert it to AVI and then open it, it says

"couldn't locate decompressor for format FMP4 (unknown). VirtualDub requires a Video for Windows (VFW) compatible codec to decompress video. DirectShow codecs, such as those used by Windows Media Player, are not suitable."

I am a newbie to this program. I don't know what that means, and all the blogs and videos I have read and watched don't explain thoroughly. Can someone please provide a step by step process? I have looked at the VirtualDub forum on how to open non-avi files in virtualdub. Again, I doesn't explain it very thoroughly and I have no idea what it is saying. Please provide a thorough step by step process.

[roma_turok]

A sure its WMA files?
because WMA its audio files
Try open in avidemux

[newbie13]

It is a Windows Media Audio/Video File

[Baldrick]

Post the details from video file. Use MediaInfoxp an copy all properties.

[newbie13]

General
Complete name : C:\Users\Cassi\Dropbox\CEP Materials\CEP photos\MOKAN Take Charge Challenge\MOKAN videos\Brian Davis video - Copy\Video Feb 21, 10 33 44 AM_mov_Output_1.wmv
Format : Windows Media
File size : 93.0 MiB
Duration : 1mn 4s
Overall bit rate : 12.2 Mbps
Maximum Overall bit rate : 12.1 Mbps
Encoded date : UTC 1970-01-01 00:00:00.000
major_brand : qt
minor_version : 0
compatible_brands : qt
model-eng : iPad
make : Apple
make-eng : Apple
model : iPad
encoder-eng : 7.0.4
date : 2014-02-21T10:32:32-0600
date-eng : 2014-02-21T10:32:32-0600
WM/EncodingSettings : Lavf54.59.106

Video
ID : 1
Format : WMV2
Codec ID : WMV2
Codec ID/Info : Windows Media Video 8
Description of the codec : wmv2
Bit rate : 11.6 Mbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Bit depth : 8 bits

Audio
ID : 2
Format : WMA
Format version : Version 2
Codec ID : 161
Codec ID/Info : Windows Media Audio
Description of the codec : Windows Media Audio V8
Duration : 1mn 4s
Bit rate : 64.0 Kbps
Channel(s) : 1 channel
Sampling rate : 44.1 KHz
Bit depth : 16 bits
Stream size : 500 KiB (1%)

[roma_turok]

Its WMV file, not WMA

download FFMPEG Input Driver for VirtualDub 32bit : https://code.google.com/p/ffinputdriver/downloads/detail?name=ffinputdriver-bin-0.7-32.zip&can=2&q=
copy all files from plugins32 folder to
plugins32 folder in VirtualDub 32bit

[El Heggunte]

Looks like you've got a broken file...

Even though MediaInfo says "WMV2", VirtualDub says the FourCC is *FMP4* (which means, FFmpeg's implementation of MPEG-4 Advanced Simple Profile).