Thomas Jensen , Jan 29, 2001; 02:40 p.m.
I have a Nikon Coolscan III (LS-30), which is roughly comparable to an LS-2000. My observation is that PhotoCD has greater dynamic range, which is sometimes useful for images with high contrast. The Coolscan produces less noise, because you may scan an image repeatedly, averaging the results.
So, it seems that the best solution is to have the same image scanned repeatedly by a PhotoCD scanner. :-) In truth, it does not matter much. Using the right software and a bit of knowledge about digital image processing, both alternatives give you excellent results. Without the right software tools, neither alternative will produce good results.