Clarence, thanks for responding. Here is another reply I received and the
question I still have...
thanks again.

Based on my question: If the backup copy group specifies

Versions Data Exists 30 Versions Data Deleted 1 Retain Extra Versions 30
Retain Only Version 30

And the following takes place


6/29/99 file dave.oracle.dump.Tue is created and bound to this mgmt_class,
        during the nightly incremental.
6/30/99 file dave.oracle.dump.Tue is deleted.
7/6/99  file dave.oracle.dump.Tue is created again and bound to this
mgmt_class,
        during the nightly incremental.
What will be the availability of the file created on 6/29? and your
response: "This is what happens:

dave.oracle.dump.Tue created 6/29/99 dave.oracle.dump.Tue deleted 6/30/99
(On 6/30/99 "dave.oracle.dump.Tue" becomes inactive; it will remain on the
host until 7/30/99 when it is deleted.)

To restore the 6/29 version, you must show the inactive versions."

The version created 6/29 will remain on the host until 7/30/99, yet if I
create another file with the SAME name, on 7/6/99, wouldn't that cause the
first one to follow the "versions data exists" rule of 30 versions?