Old post, but why would a recording be split between external and internal memory?
How much internal memory does the A10 have?
Not a huge deal but minor nuisance, I read in the manual there should be no audio lost when the a10 switches from internal memory to the microsd card, but in my most recent recording, there's a little under a second missing. Not seamless at all.
The memory could be partially full from a previous outing?
A slow memory card could be a cause of this, but unless testing reveals a persistent issue, I might write that off to a one-time fluke and cross my fingers!?! Or get a different SD card?!
A10 has 16GB internal. I had some major failure with a slow microSD card once, so I stick to the internal now!