Hi EosD, funnily enough, after our trip to the Wirral the other night, I have encountered my first CF error.
I got all my images off (RAW) no problem, except one file (well, two, the THM and the CRW), the thumbnail copied over fine, but the CRW got halfway along, and then hung explorer. Every time.
Windows kept giving me the error of "Cannot copy CRW_4024.CRW, the path is too deep". (Not the exact number).
I did have a look at the thumbnail though, and decided that I wasn't that bothered, (by looking at a few shots either side I realised it was a series of angles that didn't really work, luckily).
I reformatted in the camera and so far seems fine.
Just thought I'd share my experiences, and basically hijack your thread