All, I've two disks from a friend who's looking to sell them. They are Bernoullli cartridges. The box and disk markings are as listed below. The cartridges are 5-1/4-in squared. Oh, yeah...there's either two 120's and six 230's, or vice versa. Anyone interested in the lot? Darren Peterson disk 1 (sealed in transparent plastic bag) ------------------------------------------------------ box: Double-Sided ESDI 525000-120 Information Storage, Inc. 2768 Janitell Rd. Colorado Springs, CO 80906 disk: Certified Optical Media Information Storage, Inc. 000024061 000024602 disk 2 (sealed in transparent plastic bag) ------------------------------------------------------ box: Double-Sided WC 230 99-1108-02 Literal / ISI 2180 Executive Circle Colorado Springs, CO 80906 disk: Certified Optical Media Information Storage, Inc. 000100356 000100357