Hi all!

I've had this topic circulating in several music buff forums. SDF, you're my last hope!

I recall reading that the two multi-volume CD series Motown: The History [[also known as the "Britannia" box set) and The Ultimate Motown Collection feature alternate mixes and/or alternate version of familiar songs. I'm interested in buying them, but I'm not sure if they're worth it. What alternate mixes and alternate versions feature on the volumes of the two series mentioned above that you are aware of?

Here are the series and their respective volumes [[please correct me if something's amiss):

MOTOWN: THE HISTORY series
Motown - The History: In The Beginning [[530 701)
Motown - The History: The Dream [[530 702)
Motown - The History: Family Affair [[530 703)
Motown - The History: Movin' On Up [[530 704)
Motown - The History: Here To Stay [[530 705)
Motown - The History: The Love Songs [[530 706/7/8)
Motown - The History: The Happening [[530 709)
Motown - The History: Changing Times [[530 710)
Motown - The History: A New Direction [[530 711)
Motown - The History: Funky Psychedelia [[530 712)
Motown - The History: Silk 'n' Soul [[530 713)
Motown - The History: Musical Revolution [[530 714)
Motown - The History: Boogie Down [[530 715-2)
Motown - The History: A Quiet Storm [[530 716-2)
Motown - The History: On The Upside [[530 717-2)
Motown - The History: Cruisin' [[530 718-2)
Motown - The History: Behind The Groove [[530 719-2)
Motown - The History: Endless Love [[530 720-2)
Motown - The History: All Night Long [[530 721-2)
Motown - The History: Rhythm Of The Night [[530 722-2)
Motown - The History: One Heartbeat [[530 723-2)
Motown - The History: A New Era [[530 724-2)

THE ULTIMATE MOTOWN COLLECTION series
The Ultimate Motown Collection: Love Songs
The Ultimate Motown Collection: The Sixties
The Ultimate Motown Collection: Soul Brothers
The Ultimate Motown Collection: Midnight Soul
The Ultimate Motown Collection: Girl Groups
The Ultimate Motown Collection: Soul Mates
The Ultimate Motown Collection: Male Groups
The Ultimate Motown Collection: Soul Sisters
The Ultimate Motown Collection: Dance Party
The Ultimate Motown Collection: The Seventies
The Ultimate Motown Collection: The Early Years
The Ultimate Motown Collection: Motown Makeover

My apologies to all who might already be familiar with and/or have responded to this thread in other forums. I've learned some important facts about the sets, but I have a feeling that there might be more to learn out there.

Thanks in advance!