[78-L] Record playing speed ^

[Robert M. Bratcher Jr.]

At 09:22 AM 12/3/2008, you wrote:
>Ok there were 80, 78, 33 1/3 then 45 and even 16 rpm (my aunt had 
>one of these).
>
>But, is there a standard spining speed on a CD? (what does it mean 
>1X, 2X, 16X, etc. in the CD-ROMS?)

At 1x (realtime speed) a CD spins from 200 rpm on the inside to 600 
rpm on the outside. 2x, 4x, 8x & 16x are just available recording & 
playback speeds that a computer drive can use with the media.