Quick Data Drive

The Quick Data Drive is a mix between a datassette and a disk drive. The Quick Data Drive is connected to the datassette port of a Commodore VIC20 or C64. The data is stored on microwafers with sizes from 16 kbytes to 128 kbytes.
The QDD has a directory system and can load and save with 2 kbytes/sec. It is also possible to daisy-chain more QDD's. The QDD uses it's own operating system for reading and writing of data.