Hi, My cel. phone does already many things, including recording the interviews that I do. Up until now, no lectures - sitting at a distance in a conference room, during a lecture or a work meeting - have been recorded with my cel. phone, an iPhone 5C. However, I would like to start recording lectures and to continue doing (face to face) the inter- views that I do, that vary in time and can last up to seventy five minutes. Should I continue using my phone, or should I start using something like this: http://www.bhphotovideo.com/c/product/811053-REG/Zoom_ZH2N_H2n_Handy_Recorder_Portable.html or this: http://www.bhphotovideo.com/c/product/1116977-REG/zoom_zh4nsp_h4nsp_handy_recorder.html or should I stick to my phone ?? Thank you in advance, kind regards, igmolinav : ) !!!