These addresses represent the location that would be occupied by the zeroth eight-byte graphic in each graphic set. However as zero is not an allowed value for a graphic index, the actual start of the graphic data for each set is eight bytes further on than the address given here. For example, graphic set 03 has a start address here of 27278, however the UDG with an index of 1 (which is the true start of the graphic data for set 03) is at 27286. The address given here (27278) is actually an address in the previous data block at 27030.