PilotLight Audio Inc./White Stripes front-of-house engineer Philip J. Harvey recently multitracked the band's 10th-anniversary tour in 2007 in 40 channels of high-resolution digital audio using a Metric Halo rig and his MacBook Pro laptop.
We ended up with 36 channels, including two audience mics. I also recorded a 4-channel pre-mix with a separate MIO 2882+DSP unit utilizing the FOH board mix-left/right, plus a pair of Schoeps CMC6MK4 mics in an ORTF stereo configuration at FOH. I would delay the board mix using the Delay Finder in Metric Halo's SpectraFoo analysis software to get the time synched to the mics and record those tracks solitary, as well as mixed together at 16-bit/44.1kHz for an easily accessed overview of the gig. If the band wanted a CD right away, I could burn one or transfer the track to a thumb drive.