u mean double sided discs
yeah they never caught on
they have obvious disadvantages of changing sides ..
they are ofcourse avaialble and are refered to as DVD 10's
normal dvd's (4.7 gb ) are DVD 5's
and dual layeres ( 8.4gb) discs are DVD 9's
its just basically 2 normal dvd discs on each side of the disc .. nuthin special and different technology wise ..
and no it wont be take as one disc either ...
it'll still be 2 different discs on the same physical media ..
kind of like 2 sides of a coin