Thought I'd put a link to this here.
Anyone?
http://www.dvinfo.net/conf/showthread.php?s=&threadid=27961

Not sure what is going on , but I suspect it drops fields with the controller determining the number of fields that are dropped

I remember that you cannot record this to tape

I know that it can be applied to an existing recording

Just thought I'd bump this up and let everyone know I did a test.
Check out the other thread.