Built into the base support are coexistence considerations for up-level media types and recording technologies. This support recognizes when it is dealing with up-level tape device selection information (TDSI) information and acts accordingly. For example, during cartridge entry processing, a volume whose media type and/or recording technology is not supported at this system level will be left in the insert category to be processed by a system that understands the up-level TDSI values. Also, if the TCDB is being shared across multiple system levels, volume records containing up-level TDSI information will not be displayed through ISMF. This support also prevents operator commands, job requests, and CBRXLCS requests for up-level volumes from being honored. This prevents the system from processing up-level media that it does not fully understand.