Abstract: According to an embodiment of the disclosure, there is provided a method that includes displaying a video with audio and/or visual cues that allow an individual to match timing with a predetermined movement, obtaining a video signal of the individual performing the predetermined movement, synchronizing the recorded video of the individual with a video of the predetermined movement, and displaying the recorded video with the predetermined video for a side-by-side review.

Abstract: A virtual file system and method. The system architecture enables a plurality of underlying file systems running on various file servers to be “virtualized” into one or more “virtual volumes” that appear as a local file system to clients that access the virtual volumes. The system also enables the storage spaces of the underlying file systems to be aggregated into a single virtual storage space, which can be dynamically scaled by adding or removing file servers without taking any of the file systems offline and in a manner transparent to the clients. This functionality is enabled through a software “virtualization” filter on the client that intercepts file system requests and a virtual file system driver on each file server. The system also provides for load balancing file accesses by distributing files across the various file servers in the system, through migration of data files between servers.