Hdd vs Flash.
A flash based player would be able to withstand knocks and
impact more greater than those of hdd based, as hard
drives are "actually discs which has a needle to read and
write data" , in a case of a knock when it is actually writing
data, reading data, the dics must be scratched and it causes damage
to the hard drive.
Yes the upcoming show sells creatiive products.
You should be able to transfer videos and photos via sd card.
Speed of transfer depends on the card. how fast it writes
ect.
quite unsure about qn 2 and 3