Bad video source - how to filtering ?

[albesp77]

Dear all, i have an original DVD maded from a probably bad video source, this dvd is interlaced, so i use yadif deinterlace filter when i try to convert to x264 mkv, i notice this disturb also on original dvd when played in my tv bd player, so i want to convert to mkv hoping that exists some video filter that can fix this:

Image link (http://postimg.org/image/6npo8nixb/335d31fa/)

those diagonal lines moves like a snake on video playing when image position is exactly the same, i don't know how this video error can be named, but seems like old vhs acquisition.

anyone can suggest me how i can try to limit this irritating effect on this video ?

thanks in advance!

[Guest]

Could be dot crawl. Post a link to a fragment of the VOB for more help. You can cut it with DGSplit, upload to mediafire.com, and post link here. 50MB will be enough.