CD-R CD-rw 15x ect

There is a lot of tech stuff to explain about CD’s & DVD’s But what do all these terms mean and how or why should I care what they mean. I know the average disk holds 700mb of information and a dvd is a lot more but all these other terms mean what? All I know is when I put a disd in my cd player it works. PLEASE HELP

You might want to start by reading these:

Understanding CD-R & CD-RW

Understanding Recordable & Rewritable DVD

There is also this for DVDs: