Hello hoemee, Here is a link to the RD utilities.  [URL] Once you have installed the utilities you will need to stop BUE services so that you can test the cartridge.  You can run the read write test to see if it passes and if so then cartridge should be good.    Please let us know if you have any other questions.
We are using Symantec BE 2012 with an RD1000 unit and have received a message through the Symantec interface that the data cartridge has bad blocks.....is there a way to test the cartridge?   Thank you
RD1000 Data Cartridge stating bad blocks