Hi,
I have been told that a data cd (also audio cd) is first "read" from the middle track. Another person told me that it is first "read" from the inside track. I always thought it was first read from the outside (near the edge) track.
Can someone, who really knows, tell me where the first "reading" (when you insert a CD) takes place?
Thanks in advance, Brad
Before you type your password, credit card number, etc., be sure there is no active key logger (spyware) in your PC.
It is the inside. For this reason the performance of reading or writing gets better as you nearer the end of the CD.
For another reason, the CD can tell the device what size it is. That-a-way, a CD drive can read 3" CD's, or even those dinky business-card-sized CD's.
Jonesy
Not necessarily. :)
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Am I correct in thinking that up until around about 32-speed drives, they would vary the spinning speed to maintain a precise transfer rate?
Yes, the early drives and audio CD players were Constant Linear Velocity (CLV) where the RPM varies to keep the data rate constant while faster drives are Constant Angular Velocity (CAV) where the RPM is steady but the data rate increases as you near the outer edge of the disc.
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