Am interested in knowing what formats, these recordings for the notes apps are being saved in. I will be using my iPad in the classroom recording lectures as I take notes. I will want to refer back to the recordings not only in the near future, but also a few years into the future as well. I presently use QuickTime recordings. Another reason for asking is to help me judge how much data storage these notes will take. I need to decide on the 32 or whether I can get by with just the 16.