Yes. The 80 gb is thicker than the 30gb.
The main physical difference would be size.
Physical size of the memory card. Mobile sdram is smaller than sdram for desktops.
The difference is the size.
the different size. There is no much difference between two subsequent sizes
there is no difference
what is difference between 32dd and 34dd
The size of your mommas stomach
what is difference between NB & OD in pipe size
size
Size
size
The size.