TrIDUpdate is a Python script for downloading the last TrIDDefs.TRD.
It first compare the MD5 digest of the current TRD file and the one available online, so if the file isn't changed it's very quick.
c:\TrID>tridupdate.py
MD5: 1bf1b5511092e5cbcf7bbde2da7ecf21
Checking last version online...
MD5: 6904c61a6e5701448c52b436bda3b95a
Downloading new defs...
Checking defs integrity...
OK.
c:\TrID>tridupdate.py
MD5: 6904c61a6e5701448c52b436bda3b95a
Checking last version online...
MD5: 6904c61a6e5701448c52b436bda3b95a
Current defs are up-to-date.
Here's the link to download it:
http://mark0.net/download/tridupdate.zipN.B. Python 2.7.x required.