Capturing through DV convertor produces dropouts

People
I am capturing from a VHS machine (and have now recreated the issue from a DVD player) through an Apple DV Convertor. In the resulting Imovie project I get occasional dropouts which translate to tiny jumps in the captured footage. I seem to lose literally fractions of a second but in music it is really annoying. I was working on a dual 1.8 processor G5 with a much earlier version of Imovie and got this a lot. I had hoped that a Mac Pro 2 x 2.8Quad core would make a pretty good job but I am still getting these glitches. I have upgraded to ilife 09 (and I like the new imovie as it happens) I have also bought a second convertor, tried a different VHS player, bought a new scart lead and tried it on my Mac Book Pro, it is always the same, dozens of tiny dropouts, very frustrating. Macs are renowned for their mighty media creation so there must be a way around this. It must be something I have not found or am doing wrong. Has anyone else had this issue? I have days of footage awaiting capture, please help.
Thanks
Phil.

You need to tell people what converter products you are using and software versions. Apple does not make a DV converter.

One thing you can try is to to capture to a different drive instead of your startup drive.

What I'm Using

You're right, it is a Formac Digitiser/DV Convertor and I am using imovie 8.0.1. I am already capturing to a drive other than the start up. It's in situ too, not USB or Firewire. Thing is though this has followed me through various versions of imovie, three VHS players, a DVD player, two convertors, three Macs and two scart leads. Maybe it is the convertor. Are there other capture devices for Macs?

I'm guessing the box converts analog to a firewire DV stream. In that case I'd suspect the converter is the issue, although that isn't absolute. Also, VCRs can drop frames and sometimes DVD players too. I was just talking to someone about this a few moments ago.

You might want to look into a time base corrector as discussed at the link.

Several people, me included, have used an Elgato Hybrid TV tuner to convert some old tapes I made. Since Hollywood productions have protection, I'd expect to see interference. The problem is you need to convert the recording to something friendly to iMovie.

I don't see the point with using such a device with DVDs since software can handle that. MPEG Streamclip may be helpful with non protected DVDs. For others do a Google search for the following words; mac "OS X" ripper