CD-R – CD-R media lets you write once to any particular place on the disc but only once. You don’t have to write to the disc all at one time – you can add information later. Files can be deleted (erased) from the CD-R – but the disc space that the file occupied will not be freed.

    CD-RW – CD-RW media lets you write to the disc many times and to overwrite the data on the disc. Although there is a limit of how many times (around 1,000), essentially you can write to the disc, delete files from the disc, and write to the disc over and over again.

    Pits and Lands – Pits are the bumps on the bottom of CD media, and lands are smooth spaces between the pits. They are equivalent to the ones and zeros that make up the binary code of computing. When an optical drive scans a disc, it interprets the pits and lands as ones and zeros and transfers the data to the computer.

    What is a CD-ROM made of? – A CD-ROM consists of an aluminum disc with a clear plastic coating. The aluminum disc is stamped with the data to be read and has a reflective surface.

    What is a CD-RW disc made of? – The reflective recordable metal layer of a CD-RW disc consists of several metals, such as silver, indium, tellurium, and antimony. This combination of metals creates a crystalline substance, which is necessary for recording and rerecording data to a CD-RW disc. It also has a protective transparent plastic coating, like a CD-ROM.

    DVD-RAM – A single-sided DVD-RAM media can store up to 2.6GB of data. Double-sided DVD-RAM media can store 5.2GB of data on one disc.

    Do I need special hardware to play DVD movies on my computer if I have a DVD drive? – You probably don’t need the hardware, which is called an MPEG-2 decoder card, but it may be best if you have it. There is software available to play DVD movies on your computer so that you don’t need the card. However, software usually doesn’t do the job quite as well as an MPEG-2 card. Several video cards over the past year or so have hardware built into them for DVD support. As computers get faster, they are better able to handle DVD movies using software only.

    Multiread – When buying a new CD drive (standard or CD-RW), you want one that can read all formats – therefore, look for a logo on the box that states "Multiread". This will mean that it can read CD-R, CD-ROM, CD-RW and CD-DA.

    Audio CD – Audio CDs recorded in a disc-at-once mode is readable in a standard CD player even if the write process didn’t finish. This is because the TOC (Table of Contents) is written up front. You will be able to play the tracks up to the point where the recording failed.

    Information about CD-R and CD-RWs -- -- You can find a lot of information about CD-R and CD-RW at
                    http://www.cdrfaq.org/

    Formatting a CD-R or a CD-RW – Formatting prepares a disc for recording. On a CD-R it writes a few basic things, on a CD-RW it may write to most of the disc. The fixed-packet formatting that DirectCD does for CD-RW discs takes about 50 minutes on a 2x-speed rewriteable drive. It is only necessary to format a disc if you want drive-letter access.
        To use variable-size packets on a CD-RW with DirectCD, format a CD-R with DirectCD and then do an image copy from the CD-R to the CD-RW

    Code Red -- Web site administrators running Microsoft Windows NT and 2000 and XP operating systems, along with the Internet Information Services software, should download Microsoft's patch from the company's Web site. Home users running Windows 95, 98 or Me are not vulnerable.

IT EXISTS IN MEMORY ONLY AND NO WRITTEN FILE EVER EXISTS ON THE HARD DISK.

    It spreads through TCP/IP transmissions on port 80. By making use of this exploit, the worm is able to send itself as a TCP/IP stream directly to the its victims, which in turn scans the web for other systems to infect.

    W32/SirCam -- This is a HIGH RISK virus that is spread to email recipients found in the Windows Address Book and addresses found in cached files. The infected email can come from addresses that you recognize. There is a file attached with two different extensions. The file name itself varies.

    The email message can appear as follows:
                    Subject: [filename (random)]
                    Body:
                            Hi! How are you?
                            I send you this file in order to have your advice
                            or I hope you can help me with this file that I send
                            or I hope you like the file that I send you

    BUT, as we keep saying – Don’t open or run attachments when you don’t know anything about them!!!! Please pay attention to the FILENAME and the EXTENSION before running an attachment.