> This is all SC-3000 products you have, or you dumped ? I have 8roms for SC-3000. I have ROM which cannot be dumped. I attempt to dump. Original ROM Dumped B- 10 BASIC Level 2A ok ok 41 BASIC SK3 ok no 50 HOME BASIC ok no E-101 MUSIC ok no 103 Chuugaku Hissyuu Eitango(Chuugaku1nen) ok ok 108 Nihonshi Nenpyou ok(yakmo) ok 115 Tanoshii Sansuu(Syogaku5nen-2) ok ok 119 Uranai Angel Cuty ok ok > Also, do you have the pinouts informations of SG-1000/SC-3000 game ? Most SG-1000 ROM are outputting 32KB or 16KB EPROM to pin out as it is. It seems that connection of "B-5, B-6, B-10, B-19" is therefore made soft. A 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 I I I I I I I I I I I I I I I I I I I I I I A0 A1 A2 A3 A4 A5 A6 A7 A8 A9A10A11A12A13 D0 D1 D2 D3 D4 D5 D6 D7 B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 I I I I I I I I I I I I I I I I I I I I I I +5 +5 /WR/RD OE A14A15 GNDGND (1) +5 +5    /OE A14/CS GNDGND (2) +5 +5 /CS A14/OE GNDGND (3) +5 +5 /OE A14/CS GNDGND (4) (1)From SMS-FAQ (2)Safari Race G-1032 (3)Star Force G-1043 (4)Chuugaku Hissyuu Eitango(Chuugaku1nen) E-103 It may not become helpful.sorry! ----------------------------------- skyhigh < tr-h@mb.kcom.ne.jp >