Thank you for your answers.
I have used GSpot and the result is:
*Movie 1
Codec
4CC:mp43
Name:S-mpeg 4 version 3
Stat: 2 compatible codecs installed:
Microsoft MPEG-4 Video Decompressor
WMVideo Decoder DMO
*Movie 2
Codec
4CC:div3
Name
ivX 3 Low-Motion
Stat: 2 compatible codecs installed:
DivX Decode Filter
DivX Decode Filter
*Movie 3
Codec
4CC
X50/divx
Name
ivX 5.0
Stat: 2 compatible codecs installed:
DivX Decode Filter
DivX Decode Filter
These 3 movies have the problems I have reported: slow motion and hick-ups.
Can you help me with this?
Thanks in advance for your kindness.