#1. King Sparta has a great plugin, "Data master", which will do this in about 30 seconds. I believe you can also do it using "rename files from properties", on a somewhat more limited basis.
#2. I would not do this to the "Name" Tag, but rather just the filename, if you're determined to do this. I tried doing this to some of my tracks as "Name" and found that MC would not by default bring up "Layla (Live)" when searching for "Layla". So I instead created custom fields to hold info such as "version" or "mix".
#3. I do think it's important to append indicators to your tracks to prevent one version from overwriting a different version when doing things like "copy disk files". Currently I'm messing around with adding the track length, although it looks really messy.
