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What you may want to know about DVD disks
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DVD stands for Digital Versatile Disk; DVDR is Recordable and can be used only once, while DVDRW is
rewritable and can be used multiple times.
There are three competing types of DVD, namely DVD-R/DVD-RW, DVD+R/DVD+RW and DVD-RAM. Most
DVD writers can now read either of the R/RW versions, though DVD-RAM is an exeption.However, the +R
format is more compatible with normal DVD machines.
DVD-R, DVD-RW and DVD-RAM are supported by DVDForum, an association of hardware manufacturers,
software companies and content providers who include Hitachi, Mitsubishi, Sony, Pioneer,Toshiba and
Thomson.
The DVD+R and DVD+RW format is supported by the DVD+RW Alliance whose members include Sony,
Mitsubishi, Dell, HP, Phillips, Thomson and Yamaha. This is the latest family of DVD formats, and is also
the fastest.
The DVD- format is slightly more compatible with standard DVD recorders than the DVD+ formats, though
there is only about 1 or 2% in it, and they are fairly similar. The DVD-RAM format has better recording
features but lower compatibility with DVD players and computer DVD-ROMs.
More information on DVD disk formats is available here:
http://www.videohelp.com/dvd
DVD SPEEDS
Many people get confused with the speed ratings used for DVD drives. There are actually three different
speed ratings:
The read speed: the speed at which the hardware can read the disk data.
The write speed: The speed at which the DVD writer can burn data onto the disk.
The CD RW speed: The speed at which the hardware can rewrite over old data.
The average DVD should hold 4.37 GB which a 4X writer will burn in around 15 minutes. DVD-RW drives
generally record on a DVD-RW disk at 2X whereas DVD+RW write at either 2.4X or 4X DVD drives can
now write to DVD-R and DVD+R at the same speed of 4X.
You can get a lot more information on DVD speeds and other data on
http://www.answers.com/topic/dvd
and there will be more on this topic in Newsletter 3.
So, in this newsletter I have given you information with some site references, but I have not yet given a free software gift as I usually do. This time I am plundering the files of freewarefiles.com who provide a range of freeware for people to download.
This one is QuickTime Alternative 1/69 which will allow you to play QuickTime files (.mov, .qt and other
extensions) without having to install the official QuickTime Player. Get it here:
http://www.freewarefiles.com/program_6_74_13638.html
Watch over 300 live TV Channels on your PC free of charge with TV v2.0. Check it out here:
http://www.freewarefiles.com/program_6_212_12454.html
That’s it for today folks. I hope you found something useful, but If not, please let me know what you
want. You may find something below:
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