Can't claim any credit for this tip but found it over on DVDoctor.

To change tapes and keep recording to compact flash.

While recording as normal push the "cam link" button at the top left of the MRC1. That breaks the start/ stop signals between the tape and the recorder.

Then stop the tape and the MRC1K will continue on recording. Once you have the new tape and recording again push cam link "little lightning icon comes back on MRC1K display" Then both the tape deck and the MRC1K will start and stop together.

I would also strongly reccommend using the sony transfer utilty to bring files onto the computer. Otherwise you'll have breaks in the footage where the files should have been joined.

Yes, we talked about this in http://www.dvinfo.net/forum/sony-hvr-mrc1k-cf-card-recorder/472085-changing-tapes-without-stopping-mrc.html.

Note that even if you do not start and stop the MRC, there will still be a file break that cannot be rejoined when the tape spins up due to a momentary break in the FW stream.

I'm currently shooting some long seminars where I've been doing the unlink/relink synchro thing to change tapes while continuing to record on 32GB Lexar cards. The problem is when I try to use the utility to Log&Transfer, I get an error message on the clip with the tape change. Does anyone else have this problem? Currently using Clipwrap as a work-around but would be much more convenient if this actually worked in the Log & Transfer.

you could have least given me credit for the tip :)