BDlot DVD ISO Master is the world?s 1st freeware to backup regular and encrypted DVD as ISO image file. Advanced DVD decrypting and reading technology enables it to save full DVD content into ISO file within several minutes, and maintain the original perfect DVD quality in the meantime. It is also capable of burning any ISO file to DVD/CD/Blu-ray disc. Users can use this DVD backup freeware to manage their DVD collection well.