The Speed is the rated speed at which the drive can read and write.
1X is the original speed of the cdís..
Most Music cdís work at that speed.
8x/4x is the read / write speed of the cd-r/cd-rw drive
it can rotate the disk at 8x thatís 8 times faster than the original standard
it can Write at 4X or 4 times faster than the original
Given a 52X / 12X / 8X
Gives it the ability to Read at 52X write CD-r at 12X and CD-RW at 8X
The read speed being higher means it gets the data into the system faster
Writing at 1 or 4 X is SLOWWWW
If you can write at 8 or 12 X it cuts the time in half each time you double the speed,
or at least it should..
But in many cases you still have to reduce the write speed for data accuracy
And the Cost isnít that Much different for 4X and or 8X cd-r disks