that's exactly what I need. but if you are saying that the first one do not have the same volume level than the others... how would you do the editing? if it does not have the same volume level, so I don't need this file (because you will change the volume before editing, probably). well... I use Nero WaveEditor. I click Melhoramentos -> Remoção de Clipping. did you get it? no? so I'll say in English: Enhancements -> Remove clipping there are two parameters to setup, but I don't change it. I use the "standard". really, Andreas? I may be wrong, you're zoom may really record multi-track at 96000 Hz... but I think that you're being deceived. are you talking about those four buttons which configure the file format? 1 - 96 kHz 2 - 48 kHz 3 - 44.1 kHz 4 - MP3 if so, when you change to multi-track mode, they change behavior. Each one then corresponds to a track, and not the file format. anyway... I have checked the manual, and it says that multi-tracking is only done in MP3 format (despite the size of your card memory -- mine is 4 GB). it's strange if your Zoom H4 can do so, because I think there are no different versions of it, are there? PS: I'm always updating my firmware.