Just in the past day I had occasion to transfer some material from VHS into an MPEG2 file so as to "burn" a short DVD for a friend. After a couple of attempts with the capture profile in both PD14(first attempt) and PD8(second attempt), I noticed a strange and unwelcome pattern of horizontal lines appearing in the resultant "grab"(capture). I resolved to reset my PD8 capture profile back to DVD-LP, problem solved! Therein lies the tip, and it is mainly for those who, like me, have both PD14 and an earlier version of Power Director living "side-by-side" on their computer. I have just now altered the capture profile in PD14 also to DVD-LP(though initially I thought that option was unavailable, I just proved myself wrong).
The tip, of course, is, whenever you're capturing such content as from a VHS or Beta VCR, or from any analogue camera tape, like Video-8 or Hi-8, capture the content using the DVD-LP profile at all times. This will ensure you don't get those "horizontal line" effects(they look, for all the world, like analogue TV scan-lines), but instead a "clean"(as clean as raw analogue can be) image, which you can touch up later, in the editing process. The touching up can be, for instance, conversion(via CLPV) of the aspect ratio, adjust colour, contrast and brightness, plus utilising Video Denoise, which, when used, can really do a fantastic job of "polishing up and smoothing out" that old analogue stock you've got stashed away in that old cupboard, you'd almost forgotten about.
Cheers!
Neil.