Just transferred over data to a new rMBP from my old MBP. When I plugged my phone into the new rMBP to "get everything acquainted".. it told me that 2 songs didn't transfer over (iTunes said it couldn't sync 2 songs that were recognized on the phone, but not found on the computer). Seeing as 2 songs out of my 1000+ didn't make it somehow, I'm concerned about what else may be missing or have gone wrong. Any suggestions?