Usually, the ISO is very large. It may cause the player to freeze, crash, and cannot play the full title when playing. In addition, some ISO files fail to play because they are encrypted. Therefore, it is best to load the ISO into some virtual drive software and play it, such as DAEMON Tools Lite, or directly rip ISO to digital video file. WonderFox DVD Ripper Pro is a very popular ISO converter that can easily convert ISO to MP4, MKV and other digital video formats. You can free downloadfree download the program to have a try.