Capture issue: HDV v DV firewire Old equipment

This is a blast from the past.  I have an old computer with Windows 10, Adobe PE 8, and ability to connect via firewire.   I have a Sony HDR-HC3 Handycam that I have been using successfully to capture some old HD tapes.   I also  have about 10 tapes that I believe were  taken with a previous Sony standard definition video cam.   They play fine on the HDR-HC3 but I cannot get them to capture so I can edit them.  The camera is recognized, the "Capture" lights up.  It seems to work for a few seconds after I press capture but nothing is actually captured and then it pauses.  I am hoping this is just a Settings problem but I have been playing around with various options to no avail.  Anyone have any ideas?

P.S.  I also have a brand new Windows computer with PE 20 but no firewire connection.   I suppose I could go to the trouble of having a Firewire connection installed, but I am thinking that may not solve the problem.   Any thoughts on that? 

I am a fairly low-tech user so please be specific and don't assume a lot.   Thanks!   Karen