I am selling / swapping this for a friend - so I don't really know how it works - Here is the Boss info - and there are demos on YOUTUBE -

we are open to swaps for other gear.


The Boss BR-684 a compact 8-track digital recording studio with intuitive BOSS-style operation
Uses 128MB Compact Flash media (included) for over 60 minutes of recording time
8-track simultaneous playback; 64 Virtual Tracks (V-Tracks) for recording
Programmable Rhythm Guide drum track with Tone Load function
Insert/Loop effects with COSM Guitar Amp Modeling and Bass Simulator,
plus new wah effects, guitar synth and Harmonist
New dedicated track EQ for all 8 playback tracks
Instrument/Hi-Z Instrument input, XLR and 1/4" Microphone inputs, plus stereo RCA Line input
USB port for .WAV/AIFF file exchange with PCs; S/PDIF digital output
Built-in microphone and battery power for recording any time, any place
A built-in USB port makes it easy to import and export audio with USB-equipped computers. Now you can load and convert .WAV/AIFF files from your Mac or PC directly into a track, or export your song for CD-burning and MP3 creation. The USB port also makes for a great way to archive and backup recordings to your computer's hard drive.