The C64 tapes Iíve sampled myself worked when done in mono but would give me loading errors if I tried stereo, so I would not recommend using stereo for anything. Canít say Iím for or against 8-bit or 16-bit, I guess the best thing to do is some trial and error. J
Yes, stereo is not good for extraction, but with a stereo file, the left and right mono channels can be extracted individually. I'm not talking about a simple stereo -> mono convertion that will mix both channels, which is not good. I'd say more data is always better than less, if they are properly handled.