nes/snes/gb/gbc/gba/n64/psx/xbox/mega drive/master system/etc...
(there is kinda an endless list of them)
and i have around 28,000 roms - all ripped from the original Carts/Disks and put onto a DvD. when you have that many games its alot simpler and easier to use them that way, i mean a single DvD & a GameCube controller hooked to my PC is alot easier to carry and get out than searching through alot of boxes of junk.
and there's also no risk of the a**hole at the airport not listening to the fact that your carts are magnetically sensitive equippment and then proceeding to put them through the xray machine wiping them.
Tsu'va Oni Ni Jyuuko Fiori Sei Tau!
One block follows the suit ... the whole suit of blocks is the path ... what have you found?