Hi guys, I had a NanDroid backup of my stock rom before flashing CM7 on my device. As what I had understand, stock rom uses EXT3 and CM7 uses EXT4 format. As I am going to restore back to stock rom, do i have to convert the current EXT4 back to EXT3 before proceeding to NanDroid restore? By the way I'm using CWM 5.0.2.0. Thanks!