Media Key keycodes for MS Wired Keyboard 500 (PS/2)
Mail: 0xec
Home: 0xb2
Favourites: 0xe6
Play/Pause: 0xa2
Music: 0xed
Computer: 0xeb
Calculator: 0xa1

SysRq: 0xb7
ScrollLock 0x46
Break 0xc5