Script Optimization

[lev]

Can anyone provide some advice/suggestions to make a script more
precise/efficient/concise, etc.?
The script verifies checksums, renames dirs/files, edits checksum
filenames, and htm page filenames, all from mp3cd format ([0-9][0-9]
[0-9]xxx.yyy) to something more usable: for ripping an mp3cd to disk
(everything works, but I think it's a bit bulky).

It's too long to post here (160 lines) so here's the link:
http://uppit.com/d2/CKOYHE/af78a6beeeed3e21a19d5871abb9b879/utils.py
(if that doesn't work: http://uppit.com/CKOYHE)

Thanks in advance,
lev