If you need 8 tracks and c

If you need 8 tracks and can afford it, go for it.

Me, I just use a 2 track http://www.sweetwater.com/store/detail/MicroTrack2/to back up my on camera audio.

I’ll set the audio on the Micro track -10 less then the audio on cam just in case, I will also sync the 2.

it’s sorta cheap and works well.