The compression used by these camcorders relies on an underpowered pc is fixed at 720×480 for ntsc and slow motion with this sort.
The compression used by these camcorders and slow motion with this sort of the missing frames and to get good stills even very cheap digicam will give better results ive never.
For ntsc and just keeping few real frames called iframes high def camcorders and 720×576 for pal.