Parallel ATA (IDE) uses 40 pins, not 26. 26 was for floppies. But it's a standard 40-pin "header" connector. Sometimes called "IDC". CF cards have the PATA interface on a 50-pin connector. I don't ...
I have some of the Compaq cables that work with those CD-drives. I also have some of the drives left, NIB. Shoot me an e-mail (In profile). I'm much fairer than Compaq, by a long shot.