A system and method for virtual folder sharing, including utilization of static and dynamic lists. The boot code includes an initial boot loader, boot code and a control program that are executed by the flash microcontroller, and an operating system OS image and an external-host control program that are executed by an external host. 5 times that of the substrate material along at least two axial directions, with one of such axial directions extending substantially perpendicularly to first and second opposed sides of the substrate. A contact that is self-aligned to the active region can be then be formed. In another embodiment, the input data sequence, X, is compressed using a lossless data compressing techniques; and the compressed input data sequence is split into N subsequences that are distributed. Related apparatus and methods are also described.