The '[[Sega Genesis] aka Megadrive has two primary sound chips.

Yamaha YM2612 5 channel FM and 1 channel FM/PCM
Texas Instruments SN76489 4 channel PSG (Programmable Sound Generator)

The '[[Sega Master System] also had the TI SN76489.  3 square channels and a white noise channel.

Both this '[[Entry Format[entry format] and the '[[SMS (format)[SMS entry format] share the .VGM file format.

'[#[See Also]
'[l[http://shiru.untergrund.net/software.shtml[Shiru's Stuff] home of '[[VGM Music Maker], a Windows-based tracker for composing .VGM files.

'[[DefleMask Tracker], a tracker that handles several chip formats, including Sega Genesis / Mega Drive.

'[l[http://vgm.mdscene.net/forum/viewtopic.php?t=112[in_vgm] - a winamp plugin for playback 

'[l[http://vgm.mdscene.net/forum/viewtopic.php?f=3&t=113[VGM Players] - a list on vgmrips!