I personally would simply swap the internal drive with the external. If you have a Genie, there's 5 snap clips that hold the plastic case to the metal chassis, of which are accessible with a pick tool or small flat head screwdriver [two on each side & one in the middle]. As to "syncing", I believe you could simply perform the steps in the first post in this thread to copy the data from the internal drive onto the external, however someone else would need to verify. My line of thinking is since the recordings are stored with a long hexadecimal string for the filename, it's highly unlikely the small number of recordings on the internal drive would match any of the file names currently saved to the external; thus the chance of information being overwritten on the external should be extremely minute. With that being said, I would recommend waiting for a more experienced user than I to verify whether or not my assumption is correct prior to doing so. As @RunnerFL said, eSATA cables are quite fragile and more susceptible to data corruption in transit I've had 3 MonoPrice eSATA cables, as well as a few other manufacturers, fail over the past 3 years, which I've narrowed down to either the power center and all 12 power cables that run within a few inches of the eSATA cable, or the way in which the cable was managed behind the entertainment center (this one of the reasons I swapped my internal drive with the external). @RunnerFL, since eSATA ports and USB ports are cross compatible with the other, does that hold the same in regards to eSATA cables and USB cables (i.e. instead of using an eSATA cable, use a USB cable with two A Type connectors)?