Like "magnet," I feel calling an Eastlink CSR on the help line is unlikely to go anywhere with an issue such as this.
I have drafted a letter to Eastlink for snail-mail. Before I send it off, it would be nice to verify that I have the facts straight.
Latest FW for the DCT6416III is 16.57 according to http://en.wikibooks.org/wiki/How_to_use_a_Motorola_DVR
This, according to the WIKI, supposedly fixed a problem encountered with v16.53 that left "many users no longer able to use Firewire to transfer live content to a PC."
It might be implied that fixing the corruption problem with the IEEE1394 port(caused by an earlier FW update) allows the use of an expander HDD, but I don't really KNOW that for certain. It also logically implies that an expander would have been useable with earlier FW, such as that installed in mine and, presumably, others as well.
I am unsure that an expander would be any more useable with v16.57 than with earlier
versions. It is apparently possible to record live, non 5C-protected programming to an XP-PC even with early FW. Not quite the same thing as being able to simply record 5C-protected HD programming on an "expander" HDD though, which is what I want.
FW in my machine is v16.35 BTW.