Just noticed i have firmware 1.05,guess i have to update to the version 1.07... many issues with the tascam dp24sd...i call it my "eggshell" as i have to walk on eggshells,so not to wake the ghost in this unit that gives me more headaches than pleasures....so a few things i learned,you have to religiously delete unused data.....another thing i learned this unit does not like to work over 1gb songs,it can't handle it ( at least on my unit ) which brings me back to making sure i delete unused often.Everyone seems to blame the sd card,so i ordered another one,i have two of them ( sandisk extreme pro 32gb)get the same issues ,but as long as i stay below the 1gb for a song,it seems to work fine....other than if you do too many edits with the waveform jog wheel,eventually the ghost inside my machine wakes up and says you're not doing that no more,and it freezes up .Well i will update the firmware see how it goes.