Quarter Inch Cartridges (QIC) are an old form of tape storage in use since the 1970s, which you may still come across during electronic discovery.

In may be necessary to rewind a QIC cartridge from beginning to end in order to get it to function properly. Drives used to access QIC cartridges that use a SCSI cable should have a retension command you can use.

Quarter Inch Cartridges can range in size from 20 MB to 40 GB. Mini-QICs, QIC-40s and QIC-80s can be accessed with a standard floppy drive.