It is the BBS extraction tool which operates with Windows.
The thing of of the opposite of MKBBEROM is done.
MKBBEROM r03:
Necessary thing large combination playing! The ROM file which is sucked out from the band brothers additional tune cartridge (the first 768 byte utilization) the BBS file (the score file which is used with BBME). Maximum of 63 tunes (extended failure).
1. M3 starting, Band Brothers expansion ROM (GBA) starting
2. Transfer ending, when it becomes deep-black, you set the DS card of the Band Brothers and you put in a state where it can start
3. To be fast power source OFF/ON doing, Band Brothers starting
4. It can choose additional tune