Well, you had me concerned enough about using the newer ATA/66 capable ribbon cable, so I decided to ask Western Digital's Technical support if this new type of cable would cause any problems with the older drive and they assured me that it would not, so guess it shouldn't really hurt to use it. But you definetely raised concerns on it and you are not the only one who has made that suggestion, a friend of mine said he heard on TechTV that it was not a good idea to use the newer cable,, so just how much truth there is to it causing problems, well I guess its user choice and let the best cable win..thanks for your suggestion.