Drive speed question - Blu-ray Forum

Shukaku_sand · 08-28-2006, 06:21 PM

hi guys, i am wondering what does it mean if the spec of a cd driver states that its 52x or 20x or 2x or 1x etc... what does this 'x' mean? can it be converted to RPM?

ProvenFlipper · 08-28-2006, 06:24 PM

It is a representation of the read/write speeds of the drive. 1x is equivalent to 150kb/s.

AV_Integrated · 08-28-2006, 06:43 PM

In simpler terms... Most CDs are 74 minutes or 80 minutes in length. The 'x' is a multiplier...

So, if you have a 40x CD burner, it means that a 80 minute CD will take about 2 minutes to burn to that disc. Likewise, if you are putting a full 700MB of data onto the CD, it'll take 2 minutes.

DVD burners? Same thing, except DVDs hold a lot more data and have a baseline rate that is higher than CD. Not sure how fast a 4.7GB DVD would take to do at normal speed, but it's about 10 minutes or so for my 8x burner to fill up 4.7GB.

08-28-2006, 06:21 PM	#1
Shukaku_sand Junior Member Member since:Apr 2006	Drive speed question hi guys, i am wondering what does it mean if the spec of a cd driver states that its 52x or 20x or 2x or 1x etc... what does this 'x' mean? can it be converted to RPM?

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08-28-2006, 06:24 PM	#2
ProvenFlipper Special Member Member since:Jun 2006 Home Theater Gallery:4 4K collection:335 Blu-ray collection:901 Trading Score:1	It is a representation of the read/write speeds of the drive. 1x is equivalent to 150kb/s.

08-28-2006, 06:43 PM	#3
AV_Integrated Senior Member Member since:Jan 2005	In simpler terms... Most CDs are 74 minutes or 80 minutes in length. The 'x' is a multiplier... So, if you have a 40x CD burner, it means that a 80 minute CD will take about 2 minutes to burn to that disc. Likewise, if you are putting a full 700MB of data onto the CD, it'll take 2 minutes. DVD burners? Same thing, except DVDs hold a lot more data and have a baseline rate that is higher than CD. Not sure how fast a 4.7GB DVD would take to do at normal speed, but it's about 10 minutes or so for my 8x burner to fill up 4.7GB.

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