@munchkinbear The thing is, it did read one of my file. It may have been an issue with the SD card. After reformatting the card, I did a test recording and I was able to listen to it just fine on the Mac, and one of my CSUN talk recordings is listenable. Also, programming the date and time is not #accessible with the zoom h1 essential. The year is stuck on 2030, the month on January, etc. I hope this can be fixed in a future firmware update.