Database specialized in binary data storage
CouchDB has attachments: http://wiki.apache.org/couchdb/HTTP_Document_API#Attachments
MongoDB has GridFS: http://docs.mongodb.org/manual/core/gridfs/
CouchDB has attachments: http://wiki.apache.org/couchdb/HTTP_Document_API#Attachments
MongoDB has GridFS: http://docs.mongodb.org/manual/core/gridfs/