Frame fields displayed concurrently
 

Bsplayer: V 2.52 build 1031.28 Mar 2010
Video card: S3 Graphics ProSavage DDR
DirectX; 9.0c
Gspot: Codecs are installed
Bsplayer Video Decoder: ffdshow
Seek by keyframe...: unticked
Rendering: Internal render direct draw surface
AVI file: Length 1.268 secs, 38 frames

Use bsplayer to open the file with bsplayer set to Repeat: all
Video displays repetively. Movement does not seem `right'.
Use C key to stop.
Use right arrow key to look at a few frames (less than 7 - see another post)
There are two images per frame, as if both fields of an interlaced frame
are being displayed concurrently instead of sequentially.