What controls the speed data is read from a CD (1x/4x/8x/etc ??

[Bill & Debbie]

When a CD player has a transfer rate of say 48X, what determines the real
transfer rate? Is it solely the application that is reading the CD.
Example: If a car can travel at a maximum speed of 100MPH, the actual speed
it travels is controlled by the driver. Is the same true for a CD player?

Thanks in advance for your help,
Bill

 

[JS]

Data stored near the inner edge of the CD is read (transferred) at a slower
rate than the data nearest the outer edge.
There are also a number of other factors that can impact transfer rate.

JS

 

[Bob I]

Scroll down to "Transfer Rates" for the explanation.
http://en.wikipedia.org/wiki/CD-ROM

 

[Bill & Debbie]

I understand how rotational speed effects the transfer speed. What are the
other factors? Can they be selected or changed?
Thanks in advance for your help,
Bill

 

[Rock]

I understand how rotational speed effects the transfer speed. What are the
other factors? Can they be selected or changed?
Thanks in advance for your help,
Bill

Transfer speed is controlled through the burning program. Another way is
through device manager by changing the mode of operation for the drive, PIO
vs. DMA. DMA gives higher transfer rates. If the system detects errors
when operation in DMA mode then it will drop it back to PIO which is slower.
After that, even if no errors, it stays in PIO mode. You have to manually
change it back to DMA either through the registry or removing then
redetecting the controller.

 

[Ayush]

You can select the writing speed by : Right Click your cd drive in My
Computer > Properties > Recording tab > Choose the Speed.
If you want to change the Read speed, many 3rd party tools let you do so,
like you will get the "Nero Drive Speed" program with Nero that lets you
control read speed and "Spin Down" time.
|I understand how rotational speed effects the transfer speed. What are the
| other factors? Can they be selected or changed?
| Thanks in advance for your help,
| Bill
|
|
| | > Scroll down to "Transfer Rates" for the explanation.
| > http://en.wikipedia.org/wiki/CD-ROM
| >
| > Bill & Debbie wrote:
| >
| >> When a CD player has a transfer rate of say 48X, what determines the
| >> real transfer rate? Is it solely the application that is reading the
CD.
| >> Example: If a car can travel at a maximum speed of 100MPH, the actual
| >> speed it travels is controlled by the driver. Is the same true for a
CD
| >> player?
| >>
| >> Thanks in advance for your help,
| >> Bill
| >
|
|