Thankyou for the replys guys, Im thinking the best way forward for me is to maintain the materials files eg: dats etc and then trim the mumber of categories down to a more easily recognised structure like colour, wraps, textures, house, matte etc. I will maintain the current location of materials. At the moment I have a mixture of categories that are intermingled together which is messy. I will remove all downloaded material files like skp etc .
TCW V21, 2015-2020 PP, Animation Lab V5.2 & Redsdk enabled, LightWorks rendering mostly. Ender 3 3D printer.