The CD-Rs are writable only once whereas CD-RWs allow you to write on more than once. Although they can not read DVDs, you can use CD RW drivers to read as well as write data from writable compact discs, that is, CD-R and CD-RW.
CD-RW - These are also referred to as CD writers or burners. 
This allows you to watch, play or install files but do not allow you to write or burn any data.
DVD ROM - This type of optical drive operates both CDs and DVD (audios, ROMs, writable and rewritable) but just like CD-ROM, they only read data. The CD ROM drive will read a variety of CDs including audios, ROMs and for others, even writable and rewritable ones. 
Being a CD drive means that you can only use CDs on it and not DVD videos, audios or ROMs.
CD ROM - Read-only memory (ROM) means the drive can only read the files but does not allow you to burn/write data to a disc. The following are the different types of the drives: They use laser light to read data from or write data to the discs. Besides being used for music and videos, disc drives are necessary when you want to install computer software that comes in discs. CDs are able to store about 700 MB of data while DVDs store between 4.7 GB to 8.5 GB of data. Optical drives are of different kinds, some using only CDs while others using DVDs. What are the different types of optical drives? From Acer Aspire to Acer Travelmate drives, youll find the right one for your laptop. When the internal optical drive to your Acer laptop stops functioning, you can purchase one from the variety available on eBay. /cdn.vox-cdn.com/uploads/chorus_image/image/49713561/acer-disc-drive.0.0.jpg "how to open cd drive on acer laptop")
Internal or built-in drives are mounted inside the computer whereas the external ones are attached via USB cables or other means. Selecting an Internal DVD ROM Drive for your Acer LaptopĭVD ROM drives are hardware devices that allow you to play music or videos stored in discs from your computer.
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