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yamaha 4416s

i have a cd which has a capacity 650 mb but when i look properties i see it is 729 mb, and naturally i couldnt copy it. i use yamaha crw 4416s and adaptec software for coping. this software couldnt copy this cd beacuse of capacity. but how did they creat this cd, it is also a copy not original?
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barbaros
Asked:
barbaros
1 Solution
 
jhanceCommented:
You're confusing the "raw" capacity of a CDROM and the usable storage capacity.  A CDROM has the capability of storing about 729MB of data but only about 650MB can actually be used for file storage.  The difference is formatting overhead needed to make a useful filesystem on the disc.  Some proprietary applications use a non-standard filesystem or even write RAW data onto the CDROM for various reasons.  One reason might be to maximize data capacity but most often it's to prevent the CDROM from being copied by "casual" copiers or to keep any application other than theirs from using the data.

The limitation you are having is probably due to the fact that your copying software doesn't understand the file system on the source CDROM and therefore can't copy it.
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