dvd gives better quality...!
Compact Disks are optical media; they record information by burning pits in the disk and use a laser and optical sensor to detect whether a pit is present or not. A hard disk is a magnetic system - a recording head is moved close to the surface of the disk and used to read or write information. It is these different technologies that lead to the difference in abilities; CDs are more robust and cheaper, but slower - particularly when writing or re-writing information. Hard drives can hold more information, are faster and can be rewritten indefinitely.
it is more portable
You don't. You download it to your harddisk THEN burn it to your CD
The only difference is the hyphen.
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CD is better than harddisk because CD can be carried anywhere but hard disk can not
The same as the difference between a phonograph record and a phonograph. The CD-ROM is where the data is stored. the purpose of the CD-ROM drive is to read it.
The difference between CD ROM and WORM is that WORM allows to write once for the first time. Capacity is also a characteristic difference.
i ain't know
storage capacity capacity (mb)
No
What_is_the_difference_between_a_cd_minus_R_and_a_cd_plus_R
Apart from the size, there is no difference.
A CD you Cannot Copy on But a CD-R or RW you Can the CD-RW You can Erase all Information and recopy something else on it