As were are on the subject of overdumped roms, High Speed deserves some attention. The GoodNES rom has a size of 256KB. Reliable sources tell me that the game's true size is 192KB, with 128Kb or PRG and 64KB or CHR. So I decided to test the ROM. If I were to play with the header and say it only had 8x8KB pages of CHR ROM, the game still works perfectly. Looking in a hex editor only seems to suggest that everything past 192KB is garbage. So I have made a ROM with the last 64KB deleted and the game works fine. [/b]