PUBLIC MARKS with tag capacity

update on the "capprobe" approach ?

Now, with Imation Blu-ray media, professionals have a simple solution for managing their growing quantity of critical data storage. Available in recordable (BD-R) and rewritable (BD-RE) formats, Imation Blu-ray discs store up to 25 GB of digital files -- five times the capacity of standard DVDs -- and are ideal for reliable business backup, including medical and government imaging, photography, videography, as well as high definition video recording.

The hard disk drive has a short and fascinating history. In 24 years it evolved from a monstrosity with fifty two-foot diameter disks holding just five Megabytes, 5 million bytes of data to today’s drives measuring 3/12 inches wide and an inch high, or smaller, holding 400 Gigabytes or 400 billion bytes.