I write what I see
Mcs Drivers Disk -
In the late 90s, adding a second IDE port was popular for connecting a CD-ROM drive or a second hard drive. Cards like the MCS-650, MCS-850, or generic "Ultra DMA 33/66" cards used MCS chips. Without the driver disk, Windows 95 will detect the card as a "PCI Mass Storage Controller" with a yellow exclamation mark.
Cause: Bit rot or magnetic degradation. Fix: Do not attempt to read the disk in a modern USB floppy drive (which has weaker heads). Use an older (pre-2005) desktop floppy drive. Alternatively, download an image from Archive.org and write it to a new floppy using WinImage or FloppyWriter. mcs drivers disk
