Peter B Van Campen wrote:
DVD education sites this way.
Point your browser at google, and search for DVD plus just about anything. Most of it is of course sales hype and other useless junk, but I am sure there is a lot more out there than just these two which I found to be very helfpul: http://www.webopedia.com/DidYouKnow/Hardware_Software/2003/DVDFormatsExplain... More than "all you wanted to know" ( :-D ) http://www.dvddemystified.com/dvdfaq.html
players. Can one play with SACDs on PCs?
SACD = super audio CD, brought to us by Sony and Phillips. Search google for SACD, and one of the URLs you'll find is: http://www.crutchfieldadvisor.com/ISEO-rgbtcspd/learningcenter/home/cd_dvdsa... This has some technical information on SACD, which is quite different from the original CD. SACD discs have much larger capacity, and use a different recording/reproduction technology. Original CD is 16-bit pulse code modulation (PCM) sampled at 44.1KHz, while SACD is 1-bit "direct stream digital" (DSD) sampled at 2.82MHz. SACD would thus seem to be serial encoding, or as close to it as "politician" is to "liar" :-) DSD is proprietary Sony technology. Webopedia has a not very useful "definition" of PCM, but this one gives a much better technical description: http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0031099.html In a nutshell, the original analogue signal is sampled at whatever rate one wishes (this is called "pulse-amplitude modulation"), and then translated into a digital signal consisting of a series of pulses of varying duration and timing. Tiscali notes that Morse code is an example of a PCM encoded signal.