  The strong shape category of compact metrizable spaces (compacta) is
well-studied, whereas attempts to extend it to all metrizable spaces have
tended to suffer from computational complexity. However, the fine shape
category, as defined by Melikhov, seems to hold promise. It seems in fact to be
the correct homotopy theory of metrizable spaces corresponding to \v{C}ech
cohomology and Steenrod-Sitnikov homology. Further research seems to be in
order. One goal to have in mind is to show the fine shape category to be a
homotopy category in Quillen's sense, which implies representation as a
localization. But the strong shape of compacta was shown to be a left fraction
localization in several ways; we extend the representation given by Cathey to
fine shape, introducing the notion of FDR-embeddings to extend Cathey's
SSDR-maps. In the process, we also introduce what we call the mapping cylinder
of an approaching map; such a construction has been defined by Ferry and
elaborated on by Mrozik in the compact case, yet it seems the direct extension
on noncompact spaces is not possible. Thus we resort to a somewhat different
definition.
