Notes about the BME file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The BME file type is primarily associated with 'Beatmania' by Konami Broadcasting. [Japanese link.] Beatmania is a Japanese game. BME files are almost the same as BMS files. They are both used for Beatmania files, however BME was made especially for the 7-key series, although BMS can also be used for 7-key. BME files work with BMS files.