Not the ideal situation but here goes! In preparation to upgrade from an iPhone 3GS to an iPhone 4s, I backed-up the old iPhone using iTunes in the normal way. Now, before the new phone arrived, the computer holding the backup crashed and wont boot up! I have been able to access the hard disc as a slave device and I can see various files, including where the iPhone backup files were kept. Does anyone know the best way to copy the backup files from the iPhone 3GS on the old hard disc to a new computer and restore that to a new iPhone? Is it a simple case of copying the files from the MobileSync folder??? (the backup computer was Windows XP if that makes a difference - the new computer will probably be Windows 7) Cheers!