nullDC is a free, open source 32-bit Sega Dreamcast and Sega NAOMI (arcade edition of Sega hardware) game consoles emulator for Windows, first released in 2006 and discontinued in 2011. While, even compared with its successor - Reicast, nullDC is still a better choice for Dreamcast emulation on Windows.
As a user-friendly and classic screen recording software, Adobe Captivate makes any people who has no programming knowledge or multimedia editing skills be able to quickly create Flash based interactive content (such as powerful and attractive simulation, software demonstration and training based on scenario), and doesn't need the user to learn Flash technology at all.
A Modern Method for Guitar is a very classic series of teaching materials for professional and systematical learning of guitar play and creation, written by Berklee College of Music. You know, there have been a lot of guitar masters start to use this set of textbooks since 40s in the last century, because it covers a extremely wide of content, and has very strong practicability.