Check this INCREDIBLE Jazz / Jazz funk blog!

You can download here A LOT of INCREDIBLE recordings unfortunately not availiable in CD. They have been ripped by the blog's author from his personnal collection with really great quality.
With the search function, you'll be able to find really obscure recordings from great studio bassists.

Some personal favourites from this blog:

Aquarian Dream - Fantasy (1979) - Bassists: Eddie Watkins, Ernie Adams
Benny Maupin - Slow Traffic (1978) - Bassist: Paul Jackson
Charles Earland - Coming to your live (1980) - Bassist, Marcus Miller
Hidefumi Toki & Naoya Matsuoka - Pacific Jamm (1980) - Bassist: Biron Miller
Mark Soskin - Rhtym Vision - Bassist: Paul Socolow
Patrice Rushen - Shout it Out - Bassist: Charles Meeks
PLeasure - Future Now (1975) - Bassist: Nathaniel Phillips
Ronnie Foster - Love Satellite (1978) - Bassists: Abraham Laboriel, Neil Stubenhaus
Willie Bobo - Bobo (1979)

Enjoy!

http://myjazzworld.blogspot.com/