The diagnostic tests and benchmarking features include: Sequential Read, Random Access Read, Butterfly Read, Sequential Write, Random Access Write and Butterfly Write. Customizable options allow you to specify the number of blocks per read and length of time to test. Along with several other options, the software allows you to completely customize your own tests. If you are concerned with the performance or reliability of your media, this application can help. The easy-to-use interface enables you to diagnose your media with just a few mouse clicks. The repair features even include: Back-up, Wipe, Format and Restore. In many cases this will fix any logical read errors on the media.