what cord are you using?
usb 1 -2 or firewire 400/800
change the recording codec,eg: mpeg2 record can produce bars, record in a higher codec thats not lossy and then convert to mpeg2.
this is common in most video packages, usually the internal format is the best to use until you export it out. the internal format is even more essential to use if you have a hardware card specific to recording from VHS and DVD Players using Svideo or something.
If no-one gives your an answer to a question you have asked, consider:- Is your question clear.- Did you ask nicely.- Are you showing any effort to solve the problem yourself 