So, this is convoluted. I had a PC for years and it crashed. All the music on it was lost. Luckily, a lot of it was on my iPhone 4. I've been trying to upload all the old mp3s on my old iPhone 4 to my Macbook Air. Unfortunately, iTunes ONLY shows the music that I bought through iTunes. All the old mp3s I uploaded from my now-dead PC seem to go into Macbook outer space when I try to sync. I've googled this issue like crazy, and people advise downloading programs like Media Monkey or iExplorer. I tried, and none of them are working. One isn't even opening, and the other still only shows iTunes purchased music. Any ideas on what I should do?? I don't want to carry around my 4 and 6 phones just for the music.