VGM logger puts GD3 tag between header and data

[ValleyBell]

The GD3 tag of VGMs should be placed after the data. (like ID3v1 for MP3s)
All players and tools expect this order.

If it is placed after the header, players are likely to interpret the data as clock rates. (Making the header 0x100 bytes is just a workaround that will break again sometime in the future,)