Cassandra 1.2.3+ servers accepts the following form to insert a blob data:
   INSERT INTO tableName (keyColumn, blobColumn) VALUES(1, 0x01);
which does not work on 1.2.1 server.

In the current ADS implementation, the INSERT statement generated for import/export/schema script generator on a blob column is similar to the one shown below:
   INSERT INTO tableName("keyColumn", "blobColumn") VALUES(1, 01)
which won't work on 1.2.3+ servers.

And, the current implementation cannot handle blob values contained in a collection, the generated INSERT statement is similar to this:
   INSERT INTO collectionTable ("keyColumn", "listColumn") VALUES(1, [java.nio.HeapByteBuffer[pos=0 lim=1 cap=1]])