InveStore is expandable, upgradeable, and provides compatibility between operating system versions, media file formats, and hardware technologies. Because the product is based on the total number of cartridge slots and supports multiple technologies, you can access storage Re-writable, WORM, CD/DVD-ROM, DVD-RAM, and UDO libraries on the same system through a common drive letter. When you need to add another library, you can simply connect the next device and upgrade your license to accommodate the extra cartridges.