Can't open MP4?help me plz.

Hi,I've downloaded a mp4 file and tried to open it with many codecs and players but all of that can't open it,the codecs i'v tried :

K-lite-full last ver
Vista Codec
WMP11
Winamp

and when i try to open it by windows media player classic (associated witg k-lite) codec an error occures:
Media Type 0:
--------------------------
Unknown

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
subtype: Unknown GUID Name {08E22ADA-B715-45ED-9D20-7B87750301D4}
formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 0


Media Type 1:
--------------------------
Unknown

AM_MEDIA_TYPE:
majortype: MEDIATYPE_Stream {E436EB83-524F-11CE-9F53-0020AF0BA770}
subtype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
formattype: TIME_FORMAT_NONE {00000000-0000-0000-0000-000000000000}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 1
cbFormat: 0

and say:
Windows media player could bot render some of the pins in the graph,you may not have the needed codec or filters....

any one can help me?

 

The file might be downloaded incomplete, corrupt. Open it with GSpot and see what codec was used.