Can't help with the converter, sorry. I had run into that same problem transfer a bunch of old dats recorded in LP on a D8. the way i ended up handling it was to run the analog signal into a UA-5 and use the digi out on the UA-5. As for the header change, I dunno about that. The problem I encountered was that no deck would give me a lock on the digi signal @ 32Hz so I could not do a bit for bit transfer. So I ended up with no way to pull the file off the dat unless I used the analog out. The other issue I ran into was that a DAP1 would not even play the LP dats. Ended up using a Sony PCM-R500