playing DVDs on ordinary cd-rom drives...

Hi! You probably heard that story many times.
Someone told me he got a program to play DVDs
on his ordinary CD-ROM drive. Is those programs
really exist? Personally for what i know, the opticals
aren't the same at all. He probably meant that he played
a CD-R that was recorded in the DVD format, with a
program to decode mpeg2 from it, and not a physical DVD
movie disk(9.4Gb they "weight"...isn't it?) Any comments? TIA

--
Alain(alias:Kilowatt)
Montréal Québec
PS: 1000 excuses for errors or omissions,
i'm a "pure" french canadian! :-)
Come to visit me at: http://kilowatt.camarades.com
(If replying also by e-mail, remove
"no spam" from the adress.)

"KILOWATT" wrote in message
...
Hi! You probably heard that story many times.
Someone told me he got a program to play DVDs
on his ordinary CD-ROM drive. Is those programs
really exist? Personally for what i know, the opticals
aren't the same at all. He probably meant that he played
a CD-R that was recorded in the DVD format, with a
program to decode mpeg2 from it, and not a physical DVD
movie disk(9.4Gb they "weight"...isn't it?) Any comments? TIA

It's absolutely not possible, CD-ROMs use a much lower quality laser and
opticals, using longer wavelength lasers that have no chance at all at
reading DVDs much more densely packed information.

Why would you want to anyway? The price of DVD drives is so low now they're
practically the same as CD drives...