Plone4 BlobsAt several points from November, 2007 through March 2009 I worked with preliminary versions of Andi Ziedler's Plone/Zope integrations of binary large objects (blobs) in Plone 3, so my clients and I could include rich media - video, audio, formatted documents like pdf - on our sites without bloating ZODB file storage. In the process I got more familiar with zc.buildout , the Python automated build machinery used by Plone, in order to work out ZEO integration and other issues. This is an account that changed as the situation developed, and conveys many useful details involving building plone/zc.buildout, operation of blobs, and related things.