What does the 'X' in a 48X speed CD-ROM mean?

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this info helps
but id like to know how many KB/sec each multiple is for dvd if i remember correctly 1x cd-rom is 1500 Kb/sec and im pretty sure each dvd multiple is faster
thanks

1x CD is 150kb/sec
so 52x is 7.8Mb/sec and 48x is 7.2Mb/sec

Can someone PLEASE post what 1x DVD speed is?

Thanks

The problem is that it varies. I've read between 1400 and 580 RPM depending on whenre on the disk you are. 2x and 4x may not be strict multiples either, since manufacturers will play games with things like "effective" and "burst" data rates. Try this site: http://www.osta.org/technology/dvdqa/dvdqa4.htm

i thought 150kb/s for cd-rom was only an estimation, what is the exact speed??

1x for DVD is approximately 1400kb/s, I think... this is according to readcd.
-ReK

this information is certainly helpful but i would like to know
how cd are made and of what material
how things are recorded on them
and please tell me how cd drive reads those cd

I can never remember the what the order of the
notation on the oudside of a cd or dvd drive.
For example I have a dvd/cdrw and on the front
it says "52x 24x 52x 16x" I am guessing that
that means it can read a cd at 52x and a dvd
at 24x then it can write a cd at 52x and write
a dvd at 16x. Is that correct?

I believe it varies, but I would assume what you've assumed as well.

plz tell me the maximum rps speed of a 52x cd rom? and can cd rom attain rps speed more than 1000

hello,

in the info. provided above ...its given that

"A 1X CD-ROM spins 500 times per second"

and the next line 48x means 24000 rotations per MINUTE.
but 48 x 500(rps) = 24000 (rps)
and its given 24000 rpm (units are different)

can u plz tell is it rps or rpm?

bye,
tech-helper

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