Hey there, folks - news flash.... got home this evening and took a few minutes to reassess the situation; not a bad cable, not a bad card, and yes I did format the card for the R-07.... turns out the headphones I was listening to the recording with were the culprit. I was on a train trip and decided to listen back using my little Bose in-ear headphones, which I use for my iPhone and also for my Fiio player - apparently they are not all that compatible with the R-07, though! This evening, I had some time to load the file onto my desktop computer, and listened back on the R-07 as well (with a different pair of headphones), and everything is there after all. So... false alarm, apparently, and I couldn't be happier about that! It was an acoustic / non-amplified performance from a visiting Tuvan throat singer, in a small cafe for an audience of maybe less than a dozen people, like a very intimate living room show, perhaps. I was probably two feet in front of him, and it was truly amazing, if not somewhat magical. I'm really happy that the recording was not ruined, and once the performer has had a chance to vet it, we can decide if it's good enough to use for an official release, or simply share it through online channels. Thanks to those of you who tried to help, but apparently I should have waited til I got back home to assess the situation. Live and learn, I reckon....!