sorry to expose all your research Purist, but I have turned it into text so it can be searched later:
Code:
pack			ships	tracks	skins	music	liveries size

European						
Gamma			X	X	X			13.1mb
Delta			X	X	X			11.4mb
GamesRadar				X			104kb
Classic 1		X	X	X			5.8mb
Classic Music 1					X		5.2mb
Classic 2		X	X	X			8.5mb
Classic Music 2					X		5.1mb
Omega 1				X	X			15.9mb
Omega 2			X					243kb
Pure Urban English				X		7.2mb
Pure Urban German				X		7.3mb
Pure Urban Italian				X		7.1mb
Pure Urban French				X		6.9mb
Pure Urban Benelux				X		7.2mb
Pure Urban Spanish				X		7.3mb
A7 music pack					X		10.7mb
Oblivian music pack				X		7.4mb
Voice of Cod music pack				X		4.9mb
SciFi pack			X	X			2.27mb

American						
Gamma 1			X	X	X			3.5mb
Gamma 2			X	X	X			8.8mb
Gamma 3			X	X	X			5.8mb
Classic 1		X	X	X			9.6mb
Classic 2		X	X	X			8.9mb
Classic 3		X	X	X			10.9mb
Delta 1			X	X	X			7.2mb
Delta 2			X	X	X			7.3mb
Secret/Daxter		X		X			149kb
Secret/Jak		X		X			146kb
Secret/Socom 3		X		X			151kb
Secret/Socom FTB	X		X			153kb

Japanese						
Gamma 1			X	X	X			3.5mb
Gamma 2			X	X	X			4.8mb
Gamma 3			X	X	X			9.8mb
Delta 1			X	X	X			7.2mb
Delta 2			X	X	X			7.3mb
Continue		X	X	X			5.3mb
Wire 05			X	X	X			7.8mb
Coca Cola 1				X			80kb
Coca Cola 2		X					160kb
Coca Cola 3			X			X	3.7mb
Coca Cola 4		X					380kb
Coca Cola 5				X			98kb
Classic 1		X	X	X			9.5mb
Classic 2		X	X	X			3.4mb
Classic 3		X	X	X			9.8mb