Many players and editors with capture capabilities will have some sort of de-interlacing system which converts to progressive during playback. No changes are actually made to the video, but instead adjusted in a way so that it can be played back on computer. Small bits of color lines appear during playback of MPEG-2 interlaced footage with Windows Media Player (having downloaded the proper audio and video codecs).
Make sure the camcorder is connected properly and capture the video as it is. During the capture process, you should also check for capture information and possibly a “drop meter” (indicating the amount of footage getting dropped during capture).
