After using this thing for a while, I've enjoyed it but discovered another annoyance today. I put more music on another SD card that I had used in the Zoom and it remembered the track it left off on, even after replacing all files. Instead of starting the fresh SD card off at track 1, it started at 192 or so. This isn't a huge problem, but it did bring to light the fact that it takes a very long time to skip many tracks. There is no quick jumping to the beginning or end of the track list, as far as I am aware. I've decided to just let it play through the tracks for a while as I don't feel like skipping around. It can be painfully slow.
Just wanted to post this update before I forgot about it.