Laser Magnetic Storage International (LMSI) was a subsidiary of Philips that designed and manufactured optical and magnetic media.

[3] It began as a joint venture between Philips and Control Data Corporation.

[5] LMSI developed a proprietary CD-ROM interface.

Early iterations relied on many 7400-series chips – on the CM 153 card for example.

Later on, this bus was based on the highly integrated NCR chip – NCR © DIGBIE LMS 97644845-00 0390471 on the CM 260 for example.