PCM file
PCM files contain the ADPCM sound data (equivalent to the V ROMs on cartridge systems.
Offset adresses used for loading PCM files are divided by 2 (they're on a 8bit bus).
- Maximum file size: 512KiB ?
- Type code: 2
- Loadable in: PCM DRAM
- Banks: 2 of 512KiB (1MiB total)