The .MDDATA file extension belongs to files created via the iPhone and iPod touch backup process. These files contain the actual data stored on your iPhone. You perform a backup of your iPhone/iPod through iTunes.
dea prieto 2010-03-27 11:30:38 #1 how can I retrieve .mddata files? My iPhone broke so I bought another but found that I cannot open the .mddata files. Fogel, J 2010-05-20 09:36:25 #2 Is it possible to view these files on the computer or can they only be read on the iPhone? Arthur Ellul 2010-10-07 16:31:15 #3 How can I retrieve .mddata files from my iPhone backup? MrOnion 2012-10-24 15:13:27 #4 Arthur, try phoneMiner - worked great for me.