Dealing with bad dvd images and dv question

[victoriabears]

1: I have a dvd of a tv rogram that has lots of noise on it, would copying it to vhs and using improving techniques from the vhs work better than trying to deal with the dvd mpeg?

2: Does using the dv input on a dvd recorder give quality advantages over s-video or composite inputs, such as vcr to advc to dv input on dvd recorder for instance.

Thanks again guys

[guns1inger]

1. No. Bring it into the PC as mpeg-2, demux to lossless compression (huffyuv/MSU lossless), filter with avisynth or virtualdub, then re-encode. (actually, you can probably skip the demux for video filtering).

2. Probably not, unless you were passing it through some filtering hardware on the way (TBC, proc-amps etc). s-video is pretty good quality, and has the advantage that it is analogue. Unless you source is DV, putting an analogue source through a DV conversion is adding a level of compression (5:1) that in this case is not required.