I think the original dos conventions were that punctuation was not permitted in the file name, except for the '.' before the file extension, and a few characters like '-' and '_' were.
Windows has implemented workarounds, and can now deal with punctuation (most of the time)
it will however cause you many problems and headaches.
you are much better off employing a naming convention that replaces your dots and commas with more pc-friendly syntax, and translating this using find/replace within your file if this is necessary
if find/replace is not necessary, then the current syntax would seem to have no critical purpose. and should be avoided.
