the CD drive has lasers which read the CD, so the CD has pieces that can be read.
A flash drive is not a cd and therefore cannot be read like one.
Typically a drive marked as being a 'CD' or a 'CD RW' drive, will not be able to read a DVD. You will need one marked as being at least a 'DVD' drive, which will be able to read DVDs and CDs too.
If he drive is functioning properly, yes.
Yes it can
Nope, not if the drive is truly just able to read CD-ROMs.
True
In my experience, the laptops have slower drives in terms of read speed.
The specification of X in the CD drive is the number of times faster the CD drive can read from the original CD audio drives which read at a speed of 150 KBps. So 2X would be (150 KBps times 2 or 300 KBps).
A CD-ROM drive.
A CD-RW drive is able to Read CDs, VCDs, and write CD-R and CD-RW.
Your drive is probably a CD-R(W)/DVD-ROM drive. These are not capable of writing DVDs, but only reading them.
That is not possible.