Hello,
I use a slightly, different approach to list the tape used from my last 
backup, here it is, then i use a cmd to unmount the drives and eventually, 
use the last cmd to withdraw the tapes for the operations staff, the only 
kink  is that if the backups are still running at the time of the scripts 
, then the tapes can be on the list and not withdrawn, i have instructions 
for operations staff to watch out for this situations.
I have long save time here so that i don't miss any tapes left behind from 
day or two ago.
You can modify the scripts to get any information useful to you.
mminfo  -av -r"volume" -q "location= "[email protected]",savetime>=3 weeks ago"

here is the upload script
D:\nsr\bin\nsrjb -u -j "[email protected]"
And lastly, here is the withdraw script.
for /f "tokens=1" %%A in (D:\Scripts\TAPEW\ListTape.txt) do 
(D:\nsr\bin\nsrjb -w -j "[email protected]" %%A) > D:\Scripts\Logs\Tape_WT.log 
2>&1
HTH

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