Not a bug report, just a 'thought'
While the script in the Manual is nice (--new-volume-script), I was
unable to use it as I need to use v1.15.1 in order to preserve OS X
resource forks. Using bash brace expansion, I was able to obtain the
result needed with tar v1.15.1 using multiple ‘--file’ options:
a) To Create:
tar --tape-length=10240 -cMv --file=tar_archive.{tar,tar-{2..100}}
files to tar
b) To Extract:
tar -xMv --file=tar_archive.{tar,tar-{2..100}} <files to
extract>
Others might find this useful.