Most computer users are familiar with DVD. Since the common DVD with DVD-R format only can be written data in once, users are used to storing important data backup with it. After written data in, the DVD with DVD-R format becomes DVD-ROM, which prevents the important data backup in DVD from being modified maliciously. But DVD is not so perfect in practical use, for data losses in DVD are extremely common; for example, the disk is scratched or damaged. And any casual damage is likely to lead to data loss because DVD disk is exposed. Although DVD-ROM improves data security to a large extent, its value is at a discount for important files that need updating in real time. For instance, if we store the real time backup of Time Machine, how many DVDs will we need? It is very unpractical. However, once these data backups are lost, it is very difficult to perform Mac data recovery form DVD.

How to solve the problems of updating DVD and Mac data recovery from DVD
As a matter of fact, it is not so difficult to solve the problem that DVD can not be updated and the problem of Mac data recovery from DVD. Firstly, when we can not use DVD backup to recover lost Mac data, we can use Mac data recovery software to recover Mac source files, and this is a good method. Some Mac users will say that DVD data backup is useless in this situation. Indeed, it is not a bad way to choose a more suitable storage device since DVD data can not be updated, for example, USB storage devices like U disk and mobile hard disk. Why are USB storage devices recommended? That is because Mac has a plug and play feature and is portable. Apple Inc. has announced that they will abandon DVD in new Mac products and the latest Mac OS X 10.7 will provide data edition and USB edition instead of optical disk edition, which makes the future of DVD unclear. Since that, it is more advisable to select USB storage devices according to current situation.

Mac data recovery from USB storage devices
We can not perform Mac data recovery from DVD, but can we recover Mac data from USB storage devices? Absolutely we can. And it is very simple to perform Mac data recovery from USB storage devices. What we need is just professional Mac data recovery software and MiniTool Mac Data Recovery is suggested because it is excellent multifunctional Mac data recovery software. Download it from the official website http://www.mac-data-recover.com/ and install it. After launching this professional Mac data recovery software, we can see the following picture.



In the main window of MiniTool Mac Data Recovery, there are four function modules which are designed for different Mac data recovery situations. In addition, they support Mac data recovery not only from Mac hard disk, bust also from external storage devices like USB storage devices and flash memory. More software functions and its compatibility can be got from the official website.
If users are unwilling to come across the situation where Mac data recovery from DVD can not be realized or DVD can not be updated, which leads to Mac source file recovery failure, USB storage devices which are more flexible than DVD are recommended to store important data backup.