Radoslaw, Try here http://www.oracle.com/us/products/servers-storage/storage/clipper-t10000d-2009307.pdf
It says that the feature ensures that cartridges written by an older drive, such as T10000C can be rewritten to maximum capacity on a T10000D for example. I dont think they word it very well....... older cart/newer cart. Sounds a bit like IBMs' recording technology which can increase the capacity of an existing cartridge by rewriting in a newer format with a newer drive.... Mike ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN