What is the difference between CD-R and CD-RW?
A CD-R can be written to only once. If the disc is written to using disc at once and is finallized the disc should be able to be read by nearly any CD drive. A CD-RW can be written to multiple times. But the format does not have wide compatability amongs different cd drives. So a CD-RW should be used for archival type purposes only.
CD-R blanks have a completely different coating than CD-RWs. On a CD-R, bumps are burnt into the coating. That can be interpreted as a ‘0’. CD-RWs have a crystalline coating that changes its appearance when it is hit by the laser. The strength of the data (and also of the protection) is weaker on a CD-RW. This leads to the phenomenon when the copy on a CD-RW can be used, while the same copy on a CD-R does not work.
The main difference between these two formats is the number of times you can record on each disc. CD-R (compact disc-recordable) drive is a type of disc drive that can create CD-ROMs and audio CDs. This allows you to master a CD-ROM or audio CD for publishing. It is important to note that CD-R, also known as “record once,” can be played in a conventional home or car CD player. CD-RW (compact disc-rewritable) is a type of disc that enables you to write onto the disc multiple times. One of the problems with CD-R is that you can only write to it one time.
CD-R (compact disc-recordable) drive is a type of disk drive that can create CD-ROMs and audio CDs. This allows you to master a CD-ROM or audio CD for publishing. CD-RW (compact disc-rewritable) is a type of disc that enables you to write onto the disc multiple times. One of the problems with CD-R is that you can only write to it one time. With CD-RW drives and discs, you can treat the optical disc just like a floppy or hard disk, writing data or music onto it multiple times. It is important to note that CD-R, also known as “record once,” can be played in a conventional home or car CD player.
CD-R blanks have a completely different coating than CD-RWs. On a CD-R ‘bumps’ are burnt into the coating. (That can be interpreted as a ‘0’) CD-RWs have a cristalline coating that changes its appearance when it is ‘hit’ by the laser. The strength of the data (and also of the protection)is weaker on a CD-RW. That leads to the phenomenom that sometimes copies on a CD-RW can be used, while the same copy on a CD-R does not work.
