Hi Eldon, I'm ready to place the diffusion tensor data into the file for BMRB deposition. This, from memory of our discussions at the 2009 ENC, will require a new saveframe as there is currently no capacity to store such data. Would the 'Diffusion_tensor' name be reasonable? Did we come up with any tag names? Maybe I can generate something, attach it to task #6438 (https://gna.org/task/?6438), and then you advise on all the tag name changes or other fundamental changes? Cheers, Edward